kdump.conf - file contents remove after trigger crash

I have changed the path in kdump.conf from

/var/crash

to

/home/crash/kdump

. System is AlmaLinux 8. After triggering a crash with

c > /proc/sysrq-trigger

, the crash dump in still placed in the

/var/crash

folder. When I checked the kdump.conf file, everything has been cleared from the file. It becomes a blank file.