Hello @james
Thanks for the suggestion!
I checked the MySQL service — it has more than enough memory (20 GiB total, only about 40 % used).
So it doesn’t look like a memory issue.
There are no errors or warnings in the MySQL logs so far, so I think it should be fine.
I’ll keep an eye on it for a few days just to be sure.
Anyway, thank you very much for your help and your time!