I tried it and wound up going back to 2.5.0.5. When I enabled "hardware decoding preferred", playback was fine at 1x and 2x but froze at 4x.
I use 4x for reviewing recordings and playback without hardware decoding preferred doesn't reach actual 4x so that was a big issue for me. Sent US...
Try selecting 1/2 speed first, then try the fast forward. I have to do this occasionally when clicking on the increase speed doesn't seem to get recognized. Clicking the slower speed once gets me the 2x, 4x, 8x again. It's intermittent but I haven't figured out what's triggering the bug.