Minified React error #185

Version
3.0.10.1567
.net Version 4.8.0

Hello.
I have a root folder (TV) which contains 549 Shows, each show contains their respective number of seasons and episodes.
During the import library function a new screen appear with a reptile that contains this url: Minified React error #185 – React
It has to do with nesting of loops. As a retired developer I get it. However, there is no mention of a solution or fix to this scenario. Can anyone suggest a way to work with this situation?
For context, I have multiple large 20TB drives with similar number of TV show folders. Those, for the most part, worked ok. So I’m wondering what’s different about this drive/folder…

I am considering moving, say 1/2 of the folders out of the TV folder and let sonarr have a go at it to see if it’s sheer volume it can’t handle.

Any thoughts?

PS. I’ve just installed, successfully, v4. Will see if it does the same.

Did you run into the same issue with v4? I don’t recall any major changes there between v3 and v4, but v5 will end up being a pretty major overhaul to the import process, even if it’s not much of a visual change.