So, tried last canary, nothing critical to report apart that FGO doesn't work (it crashes like before with error 61), here there are both magisk log and catlog.
Catlog (too big for xda, dunno why): https://mega.nz/#!LUoBQY6L!X--KKkCCz...x1TTSGCh1b-0E4
Magisk log attached.
OnePlus 6 OOS 5.1.11, 8.1 July Patch
If anything else is needed I'll provide it right away
remove/disable that module and try again.