For a long time, I have had a terrible time with the Gradient Mask Tool in Studio. It bounces around lickty-split. It vanishes and comes back in a different configuration. No matter what I have done, I have not been able to get it to stay in place while I modify it. Most of the time, I end up using the Brush tool for masking; or the Radial Mask tool which has always worked fine.
I know what you mean. It’s like trying to herd kittens. One of the most difficult adjustments to use.
Same here. And I thought it was due to some mistake I was making when using it until I saw your post.
Thanks for the comments! I’ll make a note of this for development.