I don't see Trapcode plugins in After Effects.

[Inga5CC9]

I don't see Trapcode plugins in After Effects. Maxon shows all purchases correctly.

[Mylenium]

Perhaps you need a different version. Re-check and reinstall. Unfortunately this has become quite a mess in recent years with plug-ins always requiring new updates with every version of AE. It's easy to just pick the wrong installer. Also check the plug-in manager and reset it in case it has blocked/ disabled the plug-ins.

Mylenium

[Inga5CC9 · Accepted solution]

I finally found out what was wrong. Trapcode 16 is too old for the silicone machine. I had to run After Effects with rosetta. 

[ShiveringCactus]

Thanks for coming back on and posting the solution.  This will hopefully help the next person with the same issue.