[Walter Volpatto]

(Walter here, brand new poster… :))

Yes, this problem is a confirmed bug from black magic.

We just got a Resolve 4K for a job and that is the first thing I was doing: I have 4 different extractions and I was trying to uniform them with the format in input. at the close/reopen of the softer the values where back to null.

Workaround:
Do a PTZR manual setting for one of them, save the still, open the graph and do a manual (replace PTZR only) setting on the other clips.

It sucks, i know.

I think you can try to group them and replace just that PTZR setting, but I did not try that.