since a couple of weeks I’m having a very nasty problem with ‘Mercalli-Glitches’, where the analyze request comes up for just one frame in the UHDp30 and UHDp50 rendered output:
It seems to happen only on larger project and the one, I’m working on is about 70 minutes and it is not easy to locate these error. Even worse, they always come up on different places. There is no indication in the timeline, that these clips needs an analyze. I thought, it could be related to the short 2 – 4 frame fades I use at hard cuts. But another member of this forum got the same problem with hard cuts rendering to UHDp50. Here is an example of his output
that he also rendered to XAVC-S which can be downloaded here.
Please note, that the glitch not always is the first frame of the new clip. They happen when rending to Intel HEVC and also when rendering to XAVC-S. Other UHD formats have not jet been tested. But when rendering to FHD I could not see any glitch.
I tried it with Vp14 B270, the current Vp15 B261 and also with B216 and the current and previous Mercalli version getting always some glitches. In the past I did about 10 large UHDp30 projects with Vp13 and rendered to HEVC using frameserver and Handbrake and could never see any of those glitches.
Do any other user have these errors? Any Idea what to try next ?