Factorio Forums

Like in the title. I'm trying to save the game migrated from 0.16.51, and I'm not able to use capital Z in the filename. Lowercase 'z' seems to work just fine. No idea what other characters could be affected.

Message I get:

Character "Z" can't be part of the file name.


UPDATE: The problem persists even in new (non-migrated) game.

Thanks for the report.
Fixed for 0.17.1

I'd be more than happy to hear how did that happen

Simple c < 'Z' instead of c <= 'Z'

There are three hard problems in computer science: naming things, and off-by-one errors.