Auto-fresh stops working after some asset changes

We have recently updated to the LTS branch of 2019. We then experienced issues with the project view being out of sync compared to the local file system. All changes made within the project were not reflected by the project view’s UI. Once in this state, the editor also didn’t perform any auto-fresh actions such as reimporting files that have been changed outside the editor. A restart fixes the issue. But it’s just a temporary workaround as restarting Unity 6 times a day is not really an option.

Does anyone experience this too? Is this a known bug?

Any information on this issue is highly appreciated.

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Additionally, it also happens when I do changes on prefabs, they don’t get updated on the instances in another prefabs (until unity restart).

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This issue also happens in 2020.1.

Some more information on the issue; it seems to have something to do with Unity’s Auto-LOD. More specifically, with its asset post-processor classes. @amirebrahimi_unity Do you have some insights here?