I have two Nexus 9's running the 5.17 kernel with EXKM (paid for each). Sometime in late October both began to behave strangely and having had EXKM update a couple of times I checked such and am seeing a behavior that is new and concerning --> the first core is permanently listed as "Offline". Setting CPU Cores to just CPU0 still has the main CPU page showing 0-1.
I've reset EXKM to the defaults without any change. Cleared the apps data without any change. Uninstalled the app, re-flashed the kernel and reinstalled the latest EXKM through the Play store without any change. I'd love to go backwards until I find the update that introduced this problem but I cannot find a trustworthy APK source for EXKM.
Any help would be appreciated. I realize the Nexus 9 is a forgotten device at this point for some but the combination of your kernel and EXKM have kept these rocking along perfectly for our needs.