If you got the brand new FileMaker Pro version 19.1.3 on macOS installed and you use MBS Plugin for script workspace enhancements, please update to version 10.5pr6 or later.
We fixed an issue where showing script IDs would cut away a lot of space for script names.
Please contact us if you continue to see an issue there.
PS: Seems like the problem exists without MBS Plugin, too? See Community