Missing instances in Time Series Insights UI

Menno Dolstra 1

Hello,

When we view our instances in TSI Explorer we usually see the following result:

Which shows us that there are 8 instances for ABB which is correct. However sometimes we see the following:

Suddenly we have lost 7 instances for ABB and if you look closely to the top level (Kenter assets) you can see that that has gone down from 447 to 429 as well. If we then go to the model page we are indeed unable to find those instances. However if we download the instances using the button in the UI we get a JSON which does contain the missing instances. Likewise if we query the time series API we do get the data for the missing instances.

We have only seen this behavior with recently added instances and it's always happening with the same ones.

So to me it seems it's just a visualization problem in the UI. I just don't understand why it's happening and why only on an intermittent basis.

Any help to fix this issue would be greatly appreciated,

Menno

AshokPeddakotla-MSFT 27,386 Reputation points

2022-01-11T03:44:32.237+00:00

@Menno Dolstra Welcome to Microsoft Q&A forum!

You have mentioned, "We have only seen this behavior with recently added instances and it's always happening with the same ones" What type of instances are these?

Do the instances show up after some time?
Menno Dolstra 1 Reputation point

2022-01-11T08:45:50.927+00:00

@AshokPeddakotla-MSFT
Yes the instances show up but then disappear again, a while later show up again, etc. I'm sorry i didn't mean to say it was happening to a certain type of instance just that we only see this behavior with recently added instances never with older ones. Currently we have 447 instances but it jumps back to 429 when the issues occurs. When we had 440 it also jumped back to 429
AshokPeddakotla-MSFT 27,386 Reputation points

2022-01-11T09:48:41.82+00:00

@Menno Dolstra Thanks for the confirmation and additional details. Let me check internally with our team and update you as earliest. I will ask for more details if required.
Thanks for your time and patience.
AshokPeddakotla-MSFT 27,386 Reputation points

2022-01-13T16:36:34.367+00:00

@Menno Dolstra I see that you already downloaded the instances from JSON, but it would be good to verify what the REST call is returning on the network tab. Please open the chrome dev tools, Network tab, and then filter by 'hierarchies' and then look at the 'preview' tab of the response. If those instances are showing up in the response, but not on the menu on the left, then it's a UX issue. Otherwise, it's something on the server.

Do let us know the out come.
Menno Dolstra 1 Reputation point

2022-01-18T09:24:52.227+00:00

@AshokPeddakotla-MSFT I wanted to give you a status update. Unfortunately we have not been able to reproduce the issue the last couple of days. So i have not been able to confirm what the result of the REST call is. Perhaps the issue has gone away or we have just been lucky. I'll keep on monitoring the situation and if the issue returns i'll update this thread.
AshokPeddakotla-MSFT 27,386 Reputation points

2022-01-31T03:45:46.297+00:00

@Menno Dolstra Thanks for the confirmation. Do let us know if you are still blocked.