Having a couple of issues with the CRJ-200 v1.7 for XP 10.5x.
1) If I increase the sim speed while in flight (e.g., to 2x normal speed), the CRJ-200 automatically rolls back its thrust levers to IDLE (and holds them there). And of course with no thrust control the plane eventually falls from the sky. However if I set the sim speed back to real time, I regain control over the thrust levers.
2) Relatedly, if I start from say a 3nm approach (using XP's :Location" menu), the thrust levers become stuck in the IDLE position. (p.s., Not sure about this, but it seems that maybe the DRM verification has changed in v1.7. On some occasions, when I try to start from a 3/10nm approach, there is a delay in the plane becoming active (powered up), accompanied by "Waiting to connect to server," which impedes the ability to use this feature of XP to practice approaches).
I use an Xbox 360 controller, with the thrust/power controls mapped to the two triggers. In both cases above, when I use the trigger to increase the thrust, the thrust levers in the CRJ flicker/flutter but do not move. I also have power/thrust control mapped to keys on my keyboard, yet with the same result. Likewise, I have tried using my mouse in the 3D cockpit view to move the thrust levers forward--same result; the thrust levers flicker but won't budge.
UPDATE: I just noticed that the cause, in the second scenario above, is that the CRJ is autonomously deploying its thrust reversers. And if I pull them in, they just go right back out again. This is probably also what is happening in the first scenario above. The magic question is why this happens in mid-flight? (auto thrust reversers are not armed). I have tested this several times, with all of my third-party plugins disabled (so no conflict there).