Sometimes when I am in the script workspace and setting a variable, I will notice that the cursor location will jump, but it is only the displaying of the cursor that jumps. If I start typing, it types in the proper location. This usually happens when I am typing a multi-line calculation and I am going between lines such as returning or moving the cursor with arrow keys. And it always shows incorrectly on a line above where I am actually at. It seems to happen when I have a tab on a line I am working on (e.g., typing option-tab so that the lines line up). At first it was mildly disconcerting, but I've gotten used to it. But it would be nice if it didn't do it.
I'm on Mac OS X 10.10.5 FMPA 14.0v2. I do have the MBS plugin which works with the script workspace (version 184.108.40.206). I think I'll upgrade it to 5.3 to see if that helps.
Does anyone else ever see this happening?