Steps to reproduce:

1. Create Discovery rule with key perf_instance_en.discovery[HTTP Service Request Queues] and Item prototype with key perf_counter_en"\HTTP Service Request Queues({#INSTANCE})\MaxQueueItemAge",60
2. Wait for performance counter items was created
3. Look for records in zabbix_agent2.log
   check 'perf_counter_en["\HTTP Service Request Queues(...)\MaxQueueItemAge",60]' is not supported: A counter with a negative denominator value was detected.

Result:
Items perf_counter_en["\HTTP Service Request Queues(...)\MaxQueueItemAge",60], created by discovery rule, become not supported for all IIS application pools