Thanks, will do mem test etc. Agreed, could be hardware - it's an old device.

Don't know if these could have an effect:
System has an almost 5 year old SSD, but it's a samsung pro, so it might still have some cycles left (maybe).
Earlier the day I was playing around with swappiness & cache ...

@Loewchen,
- Can not reproduce when loading from last manual save. Everything seems fine when loading last manual save.
- Could also not load _autosave2.zip.tmp - factorio ui says "file corrupted"

But I remember nou what I was doing when it crashed: I was busy middle-click removing shortcuts from ...

Hi all, this is my first crash report - so I'm not really sure what the format should be

factorio-current.log (see attached, or pastebin)

Thanx & goodluck!