Codec missing

Osmo pocket is a REC709 color space.  You must have it on a REC709 timeline AND your export must use the REC709 color space for it to look normal.  I have been playing around with this for the last few days and I suspect its the same thing I have been seing.

I am no export in color management, but what I have figured works for me based on some advice I got from the main forum is your color space should be what you plan to deliver your work in and work backwards.

For your issue, check to see if your color space is set correct at the clip, timeline AND export and they match.  It gets complex now when you have a mix of clips from different colors spaces - I find it confusing and still fusing with it.

The big take away is seems is that H264 and H265 footage is now color space managed, which is a new process for those of us that never managed color space before.  @R Neil Haugen is really good with it seems, and amoung others, they have recomended several ways to deal with the issue and the SDR conform seems to the preferance they have (being carefull to not put words in thier mouth hopefully).

Is this for SDR or HDR media, as the two have radically different causes for this?

Do you have the Display Color Management option selected in the Prefereces dialog box?

And are you aware of the way the Mac Colorsync utility mis-applies Rec.709 standards for SDR media?

And of course, if the clips are HLG or any other version of HDR, you would need to select the HLG option in the sequence settings among other things.

Neil