I just tested this and I cannot reproduce it. Line services have been in the game for 2 years and have been under intense use and debugging so the trigger might be specific to your save.

Can you please send me your save plus a set of specific steps to reproduce using lines in your save? For example "1) observe child line ABC/3 duration. 2) change stop 10 in parent line ABC to 5 minutes stop. 3) observe child line ABC/3 duration, it is now 2:04:17, it should be instead 2:05:00".

Yes confirmed, I can see this as well. Reported a few days ago on Discord and still there. It does not happen with every line service, just some places. In my case I was adding a secondary platform to a station, and distance after skipped stop on the line service was changed to an incorrect, same value as in the parent (as if the stop was not skipped). Can send the file too. It gets fixed on game re-load or if editing the line service in any way.

Originally posted by adlet:

It gets fixed on game re-load or if editing the line service in any way.

I understand, that's why I ask not just for the save, but also for a specific step by step process to reproduce just after loading the save. If it reproduces that way, can I have the save and the steps? Thank you!

Sent on Discord.

Yes I've noticed it particularly when adding a secondary platform as well. I can send a save once I get home.

OK, thanks to adlet save and step-by-step instructions I found an error specifically about editing secondary signal or stops on parent lines affecting line service stop timing. The fix will need to wait for 1.15, for now you have to refresh lines by hand (there's a manual button in the Company panel to avoid forcing it with edits).

If there's any other reproducible trigger to this issue which is not editing secondary signals or stops in the parent, please post it here, thank you.