Any different result with Avid media rather than linked media? Any different result when duplicating into a different TC column than Aux TC 2? Final bonus qustion: Try moving one clip at a time into a bin and see if it always fails or only after certain clips are in the bin.

Take a look at your new sources on your timeline and see if anything stands out, like 4K resolution or a different codec.

Nope. Avid will always send audio to the i/o device if there is one connected. You can feed the audio board with decoded audio from the monitor or using an external HDMI or SDI de-embeder.

You didn't specify if the footage was Avid MXF media or linked to the orignal camera footage so this may, or may not, apply. Same file names are always a problem with linked footage. You need to fix that before bringing them into Media Composer. Avid uses hidden metadata in QuickTime source files (and possibly other file types) to identify linked

I've been sharing a team project using Dropbox so this may, or may not, apply to your situation. Our "master" project is in the Dropbox. Everybody works off a local copy of the Dropbox "master" located in a different location. The Avid Project in the Dropbox is only used for syncing, it's not an active project. We all get

Try modifying the clip parameters of the stubborn clip in Resolve. It might be a different source rate than the other clips in the sequence or have a time warp that is confusing things.

Resolve is able to read TC in Sony XAVC-S files. Avid's ability to read that TC has only appeared recently.

In my experience, if you have 2 TCs displayed at the top of the Composer window one will have priority. Much like a USB cable, the correct orientation is sometimes hard to determine (usually works on the 3rd try!) especially if you have the TC windows side by side. Do you get better results with only 1 TC window at the top of the Composer window?

It is Avid specific. With that said, you'll either need to transfer the material to a compatible volume format or use a different method to get that material into your system.

Reviews on the Mac App Store are less than stellar.