Waze Voice settings glitch

I normally use English (US) Sarah but recently started getting Zombie voice alerts for speed cameras. Changing voices to other English versions didn’t fix this until I selected the Croatian voice (Matija) then all seemed fine, untill I changed back to Sarah, then all voice prompts were in English, except for the speed camera alerts, and other warnings, these were still set to the Croatian voice I previously selected.
It sounds like the glitch only updates the voices if there is one recorded for a specific event. eg: Sarahs voice database doesn’t have speed camera alerts, so the software doesn’t replace the previously loaded prompts.
Dose anyone have any ideas on how to resolve this? My solution would be to replace all prompts in the new voice setting that doesn’t have fgile with just a blandelete previously loaded file)