When editing (already existing) pages users are getting an unexpected error which in logs shows that the file:
C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\14\Resources\filename.en-US.resx
Cannot be found. The only file we have on our servers however is:
C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\14\Resources\filename.resx
We don't appear to have any localised version of these files. And the issue isn't happening on newly made sites.
I read somewhere web parts were having issues with the KB284486 patch.
Does anyone have any ideas?