Thanks for your response Tim,
It looks like the WordPress update cleared our Advanced configuration which we reinstated and as a result brought back our missing .po files.
However the translations are still not being pulled in and have noticed that under setup it now says: This bundle’s configuration is saved in the WordPress database which previously were auto-configured as mentioned.
We’ve also tried moving location for the translations so from custom to author and system.
Does anything else have to be done when relocating the files?
Regards,