Hey dude, so I have literally spent 10+ hours on the phone and with Adobe remotely logged into my computer. I've sent them sample footage too, so that their software engineers can test on my footage on their computers. In short, it's a bug in the latest version of premier that is specific to H265 footage on XT3's. The ONLY workaround is to transcode your footage outside of Adobe (they suggested Handbrake) to H264 and then import it. This 100% works, but it's a pain. I've tried transcoding from within media encoder and whilst ProRes sometimes removes the artefacts, it's only temporary and the artefacts showed up later in the project (ie when grading). It's a massive pain in the arse and Adobe have basically just said to deal with it and hope that it will be fixed in the next update of premier. See below email from their support: ... View more

Same issue here dude. So freaking annoying. Sort your shit out Adobe! ... View more

I've tried this and this is what the adobe tech support suggested, but it still does not work. It's a bug through and through. ... View more

Hey mate, I have the exact same issue with my footage. I've spent 7+ hours with the technicians from Adobe over the phone and via remote support sessions where the manually tried everything on my computer, but to no avail. The only thing that I tried that works sporadically is to change my H.265 footage in media encoder to Prores 422 HQ. This fixed the issue on some clips, but then on others it remained. Honestly the biggest pain in the arse and I cannot believe they still haven't fixed this. I literally think the only alternative for now is to use alternate software (resolve, FCPX) if you can... Let me know if you've had any success. ... View more