No worries. The same exact thing happy to me and my Model Tech P47 while setting up the tail gear assembly. Must have been a factory glitch or something. Just use two of the bolts, but add some loctite to them before inserting them. You'll be fine. Mine are still holding strong.

Nice flying plane. What's your setup going to be? I have a Magnum 120RFS spinning an APC 15x8 on mine and flies at 1/2 throttle. At full throttle it's very, very fast. Landing are nice and slow. Good luck.