The calling thread cannot access this object

[PopsiclePrime]

The calling thread cannot access this object because a different thread owns it.

Getting this error in Content Editor. Any help would be appreciated.

[MausBueffel1563]

I don’t know If you need it anymore, but maybe some other folks from google found this post.

I tracked down the issue:

AOE 4 Editor - Build Error

No, this is not the problem, if I turn of the PC for the night, the error appears the next day too. Only steam and the editor are running. I even use the microsoft repairkit for the .NET framework. THEN I FOUND THE ISSUE! Make sure, the *.locdb is NOT opened in your preview window! [Screenshot 2022-10-25 025850] The *.locdb is located in the treeview, where you can find the mod-image. [Screenshot 2022-10-25 030202]

In short: make sure, the *.locdb is NOT opened in the preview window.