Most likely bad cg , I think har landing and the front gear collapsed and one of the main retracts side plate broke, nothing very serious but needs a lots of small areas work with all the electronics and air plumbing, I’m trying to build this one very light with one canard servo , one for each wing with fused elevators with ailerons 3 fuel tanks and single turbine 170-210 size, maybe someone has the clear canopy this will help at least to borrow I could make the plug and make some copies.