Hi EthanM7,
I am John, an Independent Advisor and a Microsoft user like you. I'm here to work with you on this issue.
You may try these steps:
In Outlook: File > Open & Export > Import/Export > Export to a file > Comma Separated Values > Select your Tasks
Now you can remove your account from Outlook client and re-configure it or you can create and use a new Outlook profile via Control Panel > Mail > Show profile to stop the progress.
Since it is a known issue for other users, you may also vote to the following UserVoice which is monitored by Microsoft. The more votes a suggestion receives, the more attention is paid to it.
https://todo.uservoice.com/forums/597175-featur...
I hope it helps you. If not, please reply back to this forum to let me know. I will be glad to follow up and help you.
Regards,
John