I had a problem like that with my TC Crockett rifle early on when I'd disassembled it and reassembled it. The locks and front/rear trigger relationships are subject to problems like that if the lock doesn't sit exactly right in its inlet. Often tiny screws are used as adjustable shims under the lock and may need to be adjusted or another shim added, sometimes a tiny bit of wood may need to be removed, etc. Such problems can happen if you tighten the lock into the stock more than the factory did (even by a small amount). The fix is typically easy and you'll get to learn how all of that works. The TC tech said, basically "Oh, yeah, here's what to do ...", I fixed it in a couple of minutes -- and then had to fix it a bit better when I did a little better work on the inletting a few weeks later. Give them a call and it will probably be pretty much the same with your problem.