I upgraded to Catalina 10.15.4 and as it says in the title when using newer AppleALC versions it causes me KP, with 1.2.4 and 1.2.8 i had't sound at all, it seems is a kext related problem but found a solution using a kext someone modified.
Ive been running an older version of AppleALC on my guide with no issues. The wake from sleep issue is a known issue though and the AppleALC team is working on a fix.
I upgraded to Catalina 10.15.4 and as it says in the title when using newer AppleALC versions it causes me KP, with 1.2.4 and 1.2.8 i had't sound at all, it seems is a kext related problem but found a solution using a kext someone modified.
Link: https://www.tonymacx86.com/threads/help-applealc-kernel-panic-after-catalina-update.284654/post-2019410
I'm using his kext and no problems so far