I have end credits rolling over an image in Premiere Pro 19.
For a few seconds, I want a part of the image (the dog) to appear over the text. Therefore, I thought that I could mask the dog his head in the text frame, and then invert the mask. That way, only the dog head appears over the text. This worked at first. However, then I tried to apply the same formula again, somewhere earlier in the video by creating a second mask over the text, and then the effect failed. I do not understand why. I tried restarting Premiere, but it did not work.
I added a youtube video so that my settings are visible:
Thanks for all the help, in advance.