New Substance TOPs Crash my .toe

I have an ever-growing .toe which has some existing Substance TOPs and PBR MATs that it’s rendering, and it’s working fine. When I add any new Substance TOPs and PBR MATs, it renders them fine, and I can save the file, no problem.

HOWEVER, when I close TD and open the saved file, it crashes on open until I remove those newly-added Substance TOPs and PBR MATs (I have to rename the file to CrashAutoSave.toe because the automatically generated one is 0 bytes). When I make a new .toe and start putting Substance and PBRs into it, it saves/opens fine, so I’m unable to reproduce the issue with a fresh .toe.

Before I put in the time to clean up my .toe for easy sharing and reproducing of the issue (it’s a very location-specific project), is there any known issues I should look for? Like, what would cause newly added Substance/PBRs to crash TD, but existing ones work just fine?

One bump cause it’s been a week, but I’m guessing this isn’t an issue other people have experienced…

Can you include the file that crashes on start or if you need to keep it private email us at support.

Thanks