[python-package] LGBM hangs with high number of categories about lightgbm HOT 2 CLOSED

Thanks for using LightGBM, and for the excellent write-up!

This looks identical to the issue reported in #6273, and we have an in-progress pull request to fix it: #6394.

Sorry you're experiencing this. This is a bug that was introduced around lightgbm==4.2.0. You could try downgrading to lightgbm==4.1.0 to work around it until a release with that fix is published.

I'm going to close this as a duplicate of #6273 and add a comment there mentioning it. If you think they are different issues, please let me know.

from lightgbm.

I also want to say... I REALLY appreciate the effort you put into making this write-up clear and the example minimal and reproducible. Made it very easy to understand what was being reported and connect it to that existing bug.

Thank you so much for your effort!

from lightgbm.