Thank you that works like a charm! I did not think to look it up in resolved as i updated to 0.17.16 and the bug is still not fixed in 17.16 . Unless it applies only to saves created in the newest version. Cheers!

Save become unloadable after random chest tutorial popup 8h into game.

Error trying to load:

The scenario level caused a non-recoverable error.
Please report this error to the scenario author.

Error while running event level::on_load()
...Data/Roaming/Factorio/temp/currently-playing/control.lua ...