I had a similar issue as well maybe 6 months ago on a couple year old gas block.
At first I bought replacement torsion spring/s, replaced the plate, and the detent pin. After I had replaced everything and still had the issue (damaging a couple more torsion springs in the process as they would be bent after being crushed forward like that) I contact MicroMOA and sent my block in for evaluation.
MicroMOA reported that the block had cracked underneath by the gas port and was letting excess gas escape into the detent area which resulted in the regulator plate dent pin acting like a gas powered piston crushing the torsion spring forward so hard it would bend the spring and lock the detent forward allowing the plate to freely slide side-to-side. You would then get a short stroke pretty quickly when the gun would fire and the regulator plate wasnt in the right spot.
I was running my block on a 10.5” MIcroMOA barrel mated to an M16 RR lower, so nothing really exotic.
Apparently I was the first consumer/end user to actually break a Govnah gas block from use. The new block runs like a champ and has no issues so far.
MicroMOA was really good about diagnosing and replacing my block quickly once it got into their hands. Absolutely no complaints about their customer service which was top notch. I would contact them via their website and explain the issue and send your block in for evaluation if needed.