Photos and video of the glitches provided below.
So I've noticed since I started using a new camcorder that in my projects I have been getting a lot of weird video glitching and artifacts. These appear only from footage shot by this camcorder and not my other camcorder, and they appear in the program monitor while editing and in the final video after export.
However, the way they appear and the fixes I have tried have been inconsistent - in some cases I can fix the frames and in some cases I can't. In some cases, the glitches appear in Premiere Pro but disappear once exported, and in some cases they don't.
More strangely, the problem comes and goes. For example, I can have a glitched frame, then if I render it, it sometimes fixes it, or if I copy it into another sequence, it may fix it, and in some cases after copying it, if I go back to the original sequence, the glitch is gone or changes (despite not having done anything to that file other than copying it).
Finally, the problem seems to occur more often in cross dissolves, but it can occur anywhere.
I have tried looking at the forums here for others who have experienced glitches but these do not appear to be the same kind of issue so I am making this post.
Here is the info:
Type of glitch: mosaic-style artifacting, frames desync, various other types such as glitched lines or squares throughout the video in a seemingly random manner.
Length of glitch: Sometimes a single frame, sometimes a few frames in one cluster, or a small group of clustered glitched frames with normal frames in between.
Where it occurs: Seemingly random, although quite common in cross dissolves. Within a 2 hour timelines, glitches can appear in a few dozen areas in total. Seems to occur on every project.
Workarounds: Sometimes, copying the edited files to a new sequence then rendering the work area removes the glitches (this is my current main workaround), although this uses up huge space on my C: drive (over 100GB) which is usually not available. Sometimes deleting clips or copying can fix it, or change the nature of the glitch (may get better but not be gone).
Camcorder with the problem: Canon XA75. MXF file format. Glitches never occur on my Canon XF300.
Version: Premiere Pro v25.2.3
CPU: 3900x
GPU: 2070 SUPER
RAM: 64GB DDR4 3200Mhz. RAM shared by Premiere and Media Encoder is 52GB.
SSD: Various SSDs and M.2s used. Problem doesn't seem to be hard drive-specific.
Media Cache: in C:\Users\User\AppData\Roaming\Adobe\Common\Media Cache Files
cfa and pek files are saved next to original media files.
Camcorder files are taken from various SSD or M.2 drives (not C: drive), whereas project saves, autosave files, preview files and video preview files are in my Adobe documents filder in my C: drive.
Sequence settings: 25fps timebase, 3840 x 2160, square pixels, progressive scan, 25fps timecode, 48000Hz, preview format quicktime, apple prores 422 LT codec, 3840 x 2160. Max bit depth and render quality are unchecked, composite in linear color is checked.
Export Settings: Typically, H.264, 3840 x 2160 or 1920 x 1080 (or DVD on occasion), progressive and usually 25fps PAL, maximum render quality and bit depth options unchecked, frame sampling, hardward encoding, main 5.1 Rec.709, 100 HDR Graphics 63%HLG 51%PQ, CBR 20mbps bitrate for USB export, or VBR 1 pass if to disc, other settings are I believe default, and audio is 320kbps AAC 48Khz stereo.
Thanks for any help.
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