I'm hoping this won't get a 'works as expected' reply from FMI.
While stepping through a script in the debugger and stepping over a Perform Script step by typing F5, the debugger jumps back to the top of the script and doesn't display the next script step. The next step is selected if the debugger window is scrolled back to the position of the step. This happens if the entire script can't be seen within the debugger window.
It's problematic in two ways; you want to see what the next step is before performing it and it's unproductive having to scroll down the script to find the next step.
Typing F5 again will jump to the step after the selected script step.
If the script in the Perform Script step has a breakpoint set, typing F5 will jump to the top of that script and not display the step with the breakpoint.
This didn't happen in 13.0v3.
I've reported the issue here: