Receiving multiple "Missing or wrong placed access key in translated string." error messages

Receiving multiple "Missing or wrong placed access key in translated string." error messages on a couple of files, specific to Russian files. Translating into 13 languages otherwise. No other languages receive this error on these files. This happens in 2 stringtable.net files.

English reads "&Add..." and Russian "&Добавить..." Removing and adding the accelerator key back does not fix the problem, nor does trying to re-assign the accelerator keys. There are just under 300 of these errors in these 2 files. I have changed the Language settings to the Cyrillic codepage from default, but that did not result in any better results.

In the Checking Options, there is not an option to suppress or bypass this error type.

Thanks in advance.