You can just click OK to ignore it. “blank” refers to an empty area in the timeline. Normally, this does not happen, and blanks are not identified as a missing file. I do not know what happened in your case.
You can just click OK to ignore it. “blank” refers to an empty area in the timeline. Normally, this does not happen, and blanks are not identified as a missing file. I do not know what happened in your case.