Adobe is a global company, offering its products around the world. The expectation is that the tools work also in non-English environments.
There are several issues where functions do not work as designed due to lack of language support (or foreign language testing), especially in ReportBuilder.
I am not talking about translation issues or missing languages (all our reporting and also Adobe UI settings are in English), but there are issues if the Windows client and/or UI is not English. For example, the "segment segment from cell" script does not work if the OS is German (even if Excel UI and ReportBuilder UI are English).
My suggestion: Adobe, please test your tools in non-English UI environments before rolling it out to the customer.