I was alarmed to find none of my v.26 FinaleScripts (especially my Edit Filter scripts) not working after upgrading to Mojave last night.
Turns out Finale has to be added back into the Accessibility pane of System Preferences>Security & Privacy>Privacy>Accessibility list.
(Same with Keyboard Maestro) -

I use FinaleScript all the time... it really speeds up creation, especially of large scores
https://www.scoringnotes.com/tips/finalescripts-for-faster-scoring-in-finale/

Issue solved.