Navigation - voice instructions not fully translated

I usually have my phone in Portuguese, PT-PT. I have noticed that the first part of a voice instruction when navigating is always in English and the rest in translated accordingly. For example:
- in about xxx metters... Vire à esquerda.
- proceed to route
- recalculating...

Thanks

Start by reproducing navigation with the phone language set to Portuguese (PT-PT), then trace the voice-instruction localization path. Check why prefixes such as “in about xxx meters,” “proceed to route,” and “recalculating” remain in English; done means the complete voice instruction is translated consistently.

Written by the indexing model from the issue text.