Two instances I have where services appear in PIS and when curser is hovered over the map but stand and wait and nothing. One is expert 101 on Bremen-Oldenburg. Have all mods and layers required but no trains arruve such as the 0817 Westerland which is a 101 service. Other is Munich to Augsburg were if the 218 livery variety pack is installed the 218s dont appear but the dosto stock sits loco less wherever spawned? Googling is inconclusive as to why these issues occur? Any thoughts anyone?
Check the mods for updates and / or compatibility with TSW 6. If there are no updates, or the issue persists, simply remove them. Then contact the author of the mods and let them know about the problem or ask when or if an update will be released to fix them. There's no point in keeping mods if they don't work or cause problems on various routes.
Thanks for response, removed the mods. Means the services stay missing but the expert 101 mod duplicated the timetables in the routes with a default expert timetable.