Choosing "Systemize Installed Apps (Listed)" from options crashes the phone

[WrichikBasu]

I am working on Samsung Galaxy On7, Android 6.0.1, Magisk 20.1, module version 17.3.1.

From Termux, when I type systemize after granting SU privileges, I get the options as usual. On choosing Systemize Installed Apps (Listed), it shows, "Loading Apps [ | ]", and then the phone freezes. Either I have to remove the battery and then boot, or the phone restarts itself after a long time.

Already tried wiping cache and Dalvik cache, but no luck. Problem continues.

However, apps that have been systemized previously are working fine.

SELinux is set to Enforcing. No solution to the problem on changing it to Permissive.