qBittorrent official forums

New issue after going to 4.2.0, still present after installing 4.2.1 today. I recognized the issue 6 weeks or so ago when I upgraded to 4.2.0, but was gone on a trip since then.
qBittorent will work normally, downloading for a few minutes, then will crash and lose all progress on the torrents that were downloading (on restart they don't recheck, they start downloading again from 0%).

Windows10 Pro.
I apologize, I don't know what other system or log info would be helpful, please let me know what to add!

Well that is weird. Do you get like a crash dialog or anything when it crashes?
I haven't had qB crashes since.... version 2.xx or something...

I've not had qB crashes. I would uninstall qB, maybe use a system config cleaner, then reinstall. Good luck.

Might be useful to say I created an issue thread over here https://github.com/qbittorrent/qBittorrent/issues/11942
for anyone who wanted to follow this.