I would say yes.
Back a few years ago I had trouble that was coming from the gas line or ball lock connector.
I would put a keg on and it was great! But slowly it would funk up.
I cleaned beer lines, faucets, sprayed sanitizer on the liquid posts and connectors. Kept happening.
Pulled all the gas lines, connectors and cleaned and sanitized everything. Spray sanitize both liquid & gas posts and connectors now, and (knock on wood) I have not had a keg go bad since.
Where in the gas system were the bugs? I am betting that they were in the ball lock connector, but I don't know for sure.