several issues with the 737ngx

HI!I must say that this bird is incredible well done specially in fps when having lot of simulation inside. Well done!I cannot fly it too much these time since I received but yesterday did a bit to test somethigns with MCP COMBO2 and linda... and happened three things:1. While climbing to 32.000 feet 3 times the engines where from 92%N1 to almost shut down, BUT after 1 second of 20% or less they increased N1 percentage again. Was in in autothrust and VS mode.2. Had the terrible triangles that came also in the Jetstream.. They appeared after happened the first time the point 1 issue.. and they were there until maybe 1 minute where they disappeared. They are 3D thin triangles with colours in front of the cockpit. Same as the Jetstream3. I was flight with HDG mode.. turned to the right and the plane banked.. no problem but it overpassed the HDG and leveled some degrees to the right of the selected HDG. Pressed "D" key because that usually happens with my carenado plane and that solves.. but in this one didn't happen.Have ActiveSky 2012, Combo2 MCP with Linda, EZDOK and the new ACCU-Feel.Do you know what can happen to any of these issues?ThanksAhh.. was the 737ngx -600