Again, I don’t use Track Presets, but that’s how it should work IMO. That’s the premise you started with, right? You wanted 10 trumpet tracks, each with 10 inserts. It can’t be a shared FX insert cause that concept cannot work.
If however you do want the same FX inserted on all 10 tracks, you can send them all to the same Group Track and insert the 10 FX there. This is not the same as the above though, cause each effect will be now triggered by any of the 10 trumpets - which can make a huge difference in sound, if for instance it is a compressor.