I stopped using the spacebar for play, used mouse on transport, didn't freeze up as much. But it did freeze up with mouse on transport. I then shut off WIFI and quit Safari, and one other program. Just Logic and RME software for sound. Seemed to be less problematic, but still an issue. It's much worse in 10.5 than it was in 10.4.8 and version before. It was rare in those two versions. not very often.
I look at my activity monitor. There are so may processes there. The majority of them very very intermittent.
I have a techno genius with a PC, he spent about a week, weeding out all the processes a PC does. googling them taking them/dumping/or putting back in. He said his PC never ran so smooth.
I'm not a computer jockey, but I've used them for almost for many decades. I'm wondering if some other process happens at the same time, processor is polling the keyboard? Thinking outloud. The stuck playhead doesn't corrupt the file.. You can still save it, quit and restart Logic. The next freeze does not happen at the same place.
MacPro 2015 6 core - 64 gig of ram
Logic Pro 10.4.8
RME fireface 800, Genelec 8040A's
Genos, Montage Motif XS Rack, Korg M3, Intrega 7
Kontakt, UVI, U-he, Music Lab- Modartt
Kontakt and UVI libraries, U-he, Madrona Labs, Music Labs, Serum, Synthmaster,
SampleTank,Falcon,UVI, A.I.R. MusicTechnologies