Would love to know more about this "MediaTool.avb" and deleting it. But also, so I understand what you're saying. When you get lag in the timeline you just switch between users and back to the "slow" user settings again? I've definitely switched between users and saw no improvment. But I'm unclear if you're saying

"In sequence, right click clip, choose copy effects, choose another clip, rightclick and choose paste effects, PASTE ALL THE EFFECTS AND KEYFRAMES TO CLIP. " I've never seen this capability in Avid – copy/paste effects? What version is this on?

I disagree. I too (like other user) feel the Y-key is not working like it used to. If I'm in segment mode and hit the "T" to mark in/out points, I usually don't see the highlight that I'm used to. Even when I disable the segment tool sometimes the timeiine highlight still doesn't show up until I hit Y-key again or move the

This does not work. Or did not work around 9 months ago. I made new settings twice and only imported my keyboard settings. But still I became "infected" with the Media Creation Blank bug. Does it matter? I don't know. But it's annoying to see it every time I open settings. :/

I feel like I did this once, but maybe there was some other user's settings file. I'll definitley give it a whirl again when I have time to remake my keyboard settings.

Mixed frame-rates also will slow down the timeline a lot. So, for instance, if you have a 23.98 project and use a bunch of 29.97 footage that was transcoded to keep the clips frame-rate (a good idea) it will be slow. If you have a ton of green dots on your clips you can render them. Not sure if this is your issue, but when you mentioned DNxHR LB I thought

A few tips (which you may know): 1) Make sure you're not using any linked AMA files in your sequence. Go to clip-color in the timeline submenu (bottom left) and turn off everything except "linked clips" – should be easy to spot any AMA clips. 2) Render everything (all your video and audio tracks). 3) Select "draft quality "

I have this same problem. I've recreated settings and it came back. It's some sort of zombie bug that just can't be killed. I haven't had a system that shows "Media Creation" since late 2016. I've given up and embraced the BLANK. Would love to know if there is a permanent cure.

Yes. I know that, but thanks for trying to help out. I like being able to drag effects into a bin to use later, or as a template. But it is very slow and it seems like it should be possible to just copy/paste attributes. Something akin to "paste formats" in excel.

There is a slight difference in the highlight color between in/out points and segment tool. Would be helpful to distinguish these two modes more by having separate highlight colors for segment tool or in/out points. While were at it, might as well customize the bin highlight color too!