First thing I do when I think I found a bug is to duplicate it. Then I relog and try to duplicate it again. This way I do not do a 'the sky is falling, I found a bug' when in fact it wasn't.
Visiting the TA to check. My money is on my D3A1 taking off normally.
[ off to TA. ] { back }
Engine start, slow roll which speeded up after I cycled my wheel brakes. That meant I had brakes ON when I exited last flight. Double check your RPMs maybe.