I purchased a CZ Upland All Terrain back in '22. Literally did not use it until this weekend. I did clean and lube before going out. After a few shots, with the selector switch set for the bottom first, I noticed the trigger would not fire. Almost seemed like the safety switch was on. Then realized I had to slightly nudge the trigger forward, and second shot would fire. Also had issues with top barrel selected first. First shot would fire - second shot from bottom barrel would not. Any suggestions? Love the gun, but have some concerns.