Lately I've been rendering some volleyball games I've edited and after putting in a lot of time with the tedious stuff like the scoreboard, the added camera movement, the music etc., I just want to wrap it up and post it as quick as possible. I often use a plugin called Film Color 2 as a cheat to getting my hands dirty with manually color grading. I just slap it on the whole video track(s) (rather than applying it to each individual clip), tweak one of the presets and let that be the extent of my color grading...since it kinda looks good. What I've been noticing however is that the final rendered MP4 (using MAGIX AVC/AAC MP4 and tweaking one of the higher quality presets) will often have glitches in random places that weren't there while I was editing it. The glitches are normally black screen chopping in and out and other times horizontal glitchy-type lines. If I do the render again sometimes it will come out without the glitches, but it seems some of the renders will not render out properly no matter how many times I try. When this keeps happening and when I start to lose patience, I work around it in a couple different ways:
If I render out the video in one of the higher Intermediate formats, these glitches don't usually show up (though sometimes a single one or 2 will make it through). This produces a 70GB file on a 7 minute video and takes much longer. I can post that large .mov file to youtube, but for my archive version I will then render that .mov file down to a 4K MP4 of around 2GB for storage.
I'm not 100% sure about this, but I believe that putting the Film Color 2 effect on the whole track might be a cause for this, as opposed to putting it on each individual clip. I've done intensive edits in the recent past where I apply FilmColor2, or another meaty plugin...but only to certain clips...and I have never gotten these glitches. I've also had these same glitches occur when using other plugins, not just Film Color 2. The reason I can't easily apply the effect to each clip by using the Paste Event Attributes, is because color grading is the final stage of my editing process...and I manually edit each clip and place tons of keyframes for camera movement in each clip...if I did the Paste Event Attributes, it would also copy the KFs from the one clip to all.
Hope I explained this properly. Am I doing something wrong? I'd rather not have to render to Intermediate each time (which takes much longer) when using intensive plugins...I'd rather be able to figure out how to render down without the glitches I get quite often. I do notice that when I do a lot of editing (like many overlays for speech bubbles, or 2 scoreboards instead of 1 (and each scoreboard has 12 tracks), or if I have a lot of KFs going on to create camera movement), that I get more glitches when rendering.
If this helps, here are a couple videos I recently u/l to YT which I had to render out dozens of times to get a clean render with no glitches. The first of these 2 videos, I ended up rendering to Intermediate in segments, where there would be 1 glitch in 1 spot...and I'd just render that 1 spot again and again till it rendered with no glitch.
FWIW, all the "camera movement" was created in the editing by manually using KFs (set to Smooth, with a smoothness of 100%)...and a few instances of the Active Camera effect where I've created about a dozen presets.
This second video...because I had less time to do it, I wasn't happy with the saturation of the whites that I quickly dialed in using FilmColor2, which you can see in the tree-line, but because I had rendered out so many times with glitches...that when I finally got one with no glitches, I just kept it:
Thank you for your input, or ideas on a way to fix this problem...it is much appreciated!