I cannot select aircraft. I'm currently "stuck" on the store purchased E-flite_Ultra Stick 1.1m ARF model. Whenever I try to select another aircraft RF crashes out to Steam. It crashes both when I use the select aircraft icon that pops up on the left side of the RF window AND if I try to select an aircraft from the Free Play menu line after hitting ESC. The crashing started happening AFTER I downloaded and used the Ultra Stick model. Before that aircraft was imported, I was able to select from the list of installed aircraft.