Sugar not rebuilding language files on repair

We just upgraded to Sugar 7.2.2 and there are several labels missing throughout the system. We've tried to rebuild and repair - but without any luck.

I've manually removed the metadata file cache/api/metadata/lang_en_us_base_public_ordered.json in hopes that sugar would rebuild it and fix this issue but to no avail, even with devmode enabled. 

How do I force sugar to rebuild it's language file? Any other tips on fixing this?