962 questions
Faced the same issues, was using Chrome. I tried in Microsoft Edge and it worked for me.
Why are files not being added to Copilot Chatbot Knowledge base?
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(89.60000000000001, 28.000000000000004%, 18%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ERK%3C/text%3E%3C/svg%3E)
Rajina Karki
45
Reputation points
I am having issues uploading files to a copilot studio chatbot that I have been building for my company. Every time I click add after uploading a file, it refreshes the page and goes back to the main knowledge base page but does not add the file I uploaded. Has anyone run into the same issue and been able to solve it? This has happened before and was solved within few hours or next day. But this time, I have been trying to add new files from last week but every time after adding new files it immediately only shows me the list of old files only.
Microsoft Copilot | Other
{count} votes
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![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(121.6, 0%, 21%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EAG%3C/text%3E%3C/svg%3E)
Antonio Giovannelli 5 Reputation points2024-08-29T08:56:45.9533333+00:00 I have the same problem. Files (.pdf) appear in the list when i drag them, but when i click "Add", the page refreshes with no file on it.
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![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(169.60000000000002, 85%, 26%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ESA%3C/text%3E%3C/svg%3E)
Singh, Anupam - 0 Reputation points2024-08-30T13:07:27.3033333+00:00 I am facing the same issue. Uploaded files are not actually getting added to Knowledge base but the page gets refreshed. Trying it for more than 2hrs.
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Antonio Giovannelli 5 Reputation points
2024-08-30T13:23:04.3366667+00:00 Yesterday it was working with pptx and word files. Didn't try yet pdfs
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Singh, Anupam - 0 Reputation points
2024-09-02T05:49:14.5266667+00:00 None of the formats are getting uploaded : PDF/PPT/DOCX/TXT
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![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(208, 48%, 30%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ESD%3C/text%3E%3C/svg%3E)
Schapira, Diego 0 Reputation points2024-09-13T09:20:23.2866667+00:00 Also facing same issues. Deleted all files to add newer versions and when uploading txt files the screen goes back to "Add knowledge source" screen and no files were uploaded.
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![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(313.6, 72%, 40%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ERB%3C/text%3E%3C/svg%3E)
Rory Burke 5 Reputation points2024-09-13T14:56:48.3066667+00:00 Also facing the same issue - and I'm using Edge.
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![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(99.2, 93%, 19%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ERH%3C/text%3E%3C/svg%3E)
Russell H. DeGrove 6 Reputation points2024-09-16T18:06:02.95+00:00 Is doing this in both Chrome and Edge. Impacts one specific bot, naturally the one that I have put all my efforts into for the past couple of weeks.
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![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(144, 0%, 23%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EMM%3C/text%3E%3C/svg%3E)
Michael Malay 0 Reputation points2024-12-18T20:13:38.73+00:00 Same issue here, when adding files one by one, it will add to the list of knowledge sources then it will error out, when adding multiple files it will show an error on the "Add knowledge" menu. If I refresh the page then the group add will show in knowledge source but will also show the error icon. All documents are PDFs, not exceeding 512MB is size, have tried in Chrome and Edge, cleared cookies and site data in both, still get the same result. The article below says that PDF is supported sooooo.... not sure what's going on with this.
https://learn.microsoft.com/en-us/microsoft-copilot-studio/knowledge-add-file-upload
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![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(230.39999999999998, 28.999999999999996%, 32%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EKS%3C/text%3E%3C/svg%3E)
K Sanjay 0 Reputation points2025-05-06T10:59:49.0433333+00:00 For me browse option is not showing on configure page only URL option available
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![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(294.40000000000003, 20%, 38%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EAW%3C/text%3E%3C/svg%3E)
Alex Williams 0 Reputation points2025-07-02T04:28:31.6+00:00 Shift-F5 to force a page refresh solved it for me... then I could see I'd added the same file a dozen times thinking it wasn't working
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2 answers
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![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(192, 95%, 28%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EN%3C/text%3E%3C/svg%3E)
NYJ 10 Reputation points2024-09-10T09:49:15.5+00:00 -
Russell H. DeGrove 6 Reputation points
2024-09-16T18:13:08.4433333+00:00 Failing in both for me. Applies to a specific bot.
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![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(153.6, 22%, 24%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EJF%3C/text%3E%3C/svg%3E)
Jonathan Fernando Herrera 0 Reputation points2024-09-19T15:02:02.35+00:00 In my case I use Opera and indeed I played by Edge and if it works, thanks!
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![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(89.60000000000001, 0%, 18%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EMI%3C/text%3E%3C/svg%3E)
Mohamed Ifham 5 Reputation points2024-09-19T07:44:31.2633333+00:00 Clear cookies and cache in chrome and try again. It worked for me