Hello,
I made the bug report. Let's hope there will be a solution soon.
I was told that the bug (PPro not able to read or interpret properly .R3D files) is not limited to only .R3D files. Also other codecs have similar problems, although I have not experimented that myself.
So, it would be nice to hear experiences form other NeatVideo users in PremierePro.
I was also told a "solution" to this problem:
"Since the cause of the problem is known, a possible solution for now is also clear: do not cut the clips that use Neat Video (or any other filter that uses temporal API of Premiere. It is okay to use the beginning section of the cut clip, but not the section after the cut."
Well, what's the point of using PremierePro (or any editing software) if you can't make edits on the timeline!!!!