To the users with gear handling problems. We are sure, that our uploads are ok. One user with the gear problem installed it to another PC and all went fine. All models are compiled with P3Dv4.5 SDK, so you have native P3Dv4.4 models. If you are using controllers like FSUIPC, it is important to update it to mimimum P3DV4.4.
I am not sure, if this is the solution, because I am not using FSUIPC or other hardware controllers. But perhaps worth to try. And keep in mind, the Let-410FG model (glass front) has no rectractable front gear. (like the real one).
Hope you have fun