Error while running event quality-control::on_nth_tick(1)LuaEntity API call when LuaEntity was invalid.stack traceback:
[C]:in function'index'
quality-control/scripts/core.lua:261: in function 'attempt_upgrade_normal'-_quality-control__/scripts/core.lua:375:in function<quality-control/scripts/core.lua:315>

Thanks for the bug report! I’ll take a look at the code and see if there is something I can do differently there.

Is it possible to get a copy of the save file where the error occurs? That will help me narrow down the exact cause.

How to send it to you?

Sorry for the delay! I setup a server that can accept a file: https://lilikoi.aegean-galaxy.ts.net
It'll stay available for 72 hours, and then shutdown once you upload the file.

edit: I tested the server with small files but not with large ones. The server should work with large files now.

Oops, had the threads mixed up.

This error should be fixed with 2.0.1 - give it a try? I'm not sure how it could have occurred, but the code should prevent this issue now.

The blueprint sandboxes error in the other thread I'm less certain about.