Getting this for scripts that worked on the prior day. It seems to be script-specific. It does not happen to every script. I think it has to do with node.js
This seems to be resolved. BAS did not like the Excel macro-enabled format that I added as a resource. I resaved the Excel file as a plain workbook and it fixed the problem.
@qgas English is default, at least English is slected if you just press ok in language selector window.
But ok, I'll make it appear only on first start.