Hi,
I experimented with openldap 2.4.41 and the files you posted and did not experience any crashes.
Please try to reduce the example setup as far as possible, until you find that the crash disappears after you disable a particular directive.
Please also make sure you have the debugging symbols for slapd and libldap installed, and then try to provide a backtrace from gdb after triggering the crash, as well as the exact config files (and, if possible, relevant DIT contents, such as ppolicy configuration) that were in use at the time.
Thanks for your help,
Ryan