There is an issue with FNS pistols that they can have a delay before firing. They are doing a recall. I don't know if y'all own any of these, I don't, but I do know even though this is a Ruger Forum members here own many different makes & models. Here is a link to their Technical Safety Bulletin with a description of the issues & a list of the effected serial number ranges.
https://fnamerica.com/customer-support/fns-service-bulletin/
https://fnamerica.com/customer-support/fns-service-bulletin/