Agent is crashing on Windows with more than one worker in application pool

On the first request (or after 3 sec interval), agent crashes with the following stack trace(s):

>  mod_iis_openam_64.dll!agent_memory_free(int pid, void * p) Line 672  C
  mod_iis_openam_64.dll!unlink_entry(int pid, unsigned int hash, cache_entry * e, int i, unsigned int ofs) Line 407  C
  mod_iis_openam_64.dll!purge_expired_entries(int pid, unsigned int hash, cache_entry * e, __int64 now) Line 498  C
  mod_iis_openam_64.dll!cache_purge_expired_entries(int pid) Line 531  C
  mod_iis_openam_64.dll!cache_cleanup_event(void * arg) Line 51  C

or:

  mod_iis_openam_64.dll!cache_add(unsigned int h, void * data, unsigned __int64 ln, __int64 expires, int (void *, void *) * identity) Line 567  C
  mod_iis_openam_64.dll!am_add_session_policy_cache_entry(am_request * request, const char * key, am_policy_result * policy, am_namevalue * session) Line 413  C
  mod_iis_openam_64.dll!validate_policy(am_request * r) Line 1186  C