Hi folks, I'm in the process of building a large scale route and I've got all the track, signals, logic working so far. I've been building the timetable for this route and have been making really good progress with over 1100 services already in and simulated successfully. Anyway enough preamble... My timetable file is broken down into 11 layers currently (with more to come), some of which are empty for the future as I develop. I posted on the Discords a while back with an issue I encountered after completing my latest layer (300+ express mainline services - due to the complexity of the diagram it wasn't feasible to do in stages) and upon trying to simulate, the simulation threw an exception so I thought it was one of those common issues, but upon some initial diagnostics it was throwing this as soon as the level loaded which I've not seen before. The error is "Assert failed: Tag.Size == Loaded" and I've been stuck ever since. I've tried several corrective steps, until I was able to play in the editor again: Removed the last layer added - PiE works Removed other layers one by one - no luck until I removed the 4th one Added back in the other 3 - PiE works At this stage I thought I'd cracked it so I went about tracking down which layer was conflicting with this new one. So: Added back the 4th layer service by service - first 4 services, each one works fine. I then add the next one, error again. Checked the formation, refreshed it, changed its layout etc. No change Added that service instruction by instruction, fine until the last stop, so I go off and investigate the ribbon - no issues and other services use it. Change the destination to another platform, no change, change it to another station, no difference either. I'm now left with little to no idea what could be causing it, I've tried amending formations, redoing services, instructions etc. Nothing works when trying to add this fifth service in. So I'm left with only one idea... The UTimetableAsset is 1.7GB currently and the only consistent step I have found where the error occurs is adding a single new instruction. So is it too big, bearing in mind I have over 500 services left on the WTT just for the main TOC, not considering the other AI services, freight etc. I almost lost faith but I thought let's see what the dump file has, the error is happening when UE is trying to validate the Serialized Timetable file. So I'm worried this confirms my suspicions that my timetable is too big. Have I hit some kind of limit? Is there anything I can do?
