PMS Unable to Transcode 4k

You didn’t specify your hardware, but hardware transcoding was not functioning for me on 10th Gen Intel with 1.28.1 and 1.28.2 (see also Anyone have been able to HW transcode on an Intel NUC 11 (Iris Xe)? - #533 by ChuckPa). It does work for me on 1.29.0, and hardware accelerated HDR tone mapping is reported to be fixed in the next release.