Strange delay issue with SOME of the stock instruments

I'm on Logic 11.1.2 and Sonoma 14.7. I'm having a weird issue where all the stock instruments in Drum Kit Designer and Studio Bass are delayed by 79ms (bounced to an audio file and checked in Adobe Audition). I can set up a loop and quantise it and it works fine in Electronic Drumkits or any third party plugins such as ToonTrack SD3. As soon as I change it to one of the acoustic kits or one of the bass instruments (or a few other random instruments, like a couple of the tambourines, brass etc), it's late. Have a look at https://youtu.be/U_F6HXWYbD0 this video for an example. It's really annoying. I've reinstalled the sound library, taken any plugin effects completely off... nothing seems to fix this. It's been over a month now. I hoped that the new update would fix it, but it hasn't done. My son is having the same issue on his system. It's a real pain. Any ideas?