On a very large old map I get this.... on a smaller map it doesn't happen. Also small Blueprints (2 items) do not cause the issue on the large map.

Blueprint contents doesn't seem to matter.

Holding a blueprint in my cursor since this update and FPS/UPS drops like a stone down a deep deep deep deep deep well. (From 60 to 13). Q key to release blueprint from cursor fixes UPS.

Update is possible cause?

I also have this. 4 UPS when holding a blueprint. Tried disabling all mods and ...

When looking at the train schedule perhaps make a deleted stations grey and a disabled stations red. That way I know which ones I can safely delete from the schedule.

I have completely seperate trains delivering empty barrels. The trains picking up full barrels are just generic pick everything up trains which dump everything at a sorting depot.

But don't listen to me, I have 230k of full barrels and 90k of empty barrels at the moment

I was also thinking some indication of available storage capacity in Storage chests could be useful. % of slots available?

'training' ? sounds like a Mod.

if you're using a Mod to do things you can't normally (like make Enemies into pets), then it's 50/50 at best of fault to the game and the Mod.
Factorio can't really adjust it's programming to fix bugs or problems that only occur with Mods. as that's a potentially ...

Kovarex replied to a thread on Reddit about achievements

Achievements are stored in separate file when mods are activated and they are not reported to steam.

Can't post a link because this is my first post. Yay