Bolt catch issues
Went out to the range today with my first build, everything was going fine. After about 100 rounds the bolt catch stopped working after the last round was fired. I tried it with a few different magazines and the same thing kept happening. If i pull it back with the charging handle it catches just fine! I'm thinking its a gas problem since it was working at first but not now (but i have no idea what to do if it is a gas problem. I know there are tons of forums on here about bolt catch issues and i searched for a while, but I could find one where it was working but then stopped. If there is a thread feel free to direct me toward it and sorry about the repost.
Did you fully clean the weapon, including chamber with a chamber brush before shooting the rig?
When the problem occurred, did you pull the B/C and replenished the CLP on both the inside and outside of it to re-lube the upper bearing parts (though migration off the B/C to them) to see if fouling was the problem at hand during initial break in?