Hi Nightmaster, I'm afraid I cannot figure out by myself which of your mod is messing with TimeTools. All I can say is that TimeTools is working fine for me on a minimal mod setup. I advice you to switch off all mods and then reactivate them one by one to see which one is the culprit... Then I mayb...

Game speed tweak seems didn't works fine since game version 16.1X.... hi, what problem do you have ? i just tested it with factorio 16.22 and everything seems ok for me concerning game speed buttons. Does anyone else have problems ? Are you sure you do not have another mod tweaking with time instal...