Spell checking form boxes

Hi everyone, first time posting.

I've just ran into the spell check issue.  We have an incident form we use, one of our end users recently reported that the spell checker is no longer working and reached out for help correcting.

I have read quite a bit on the issue within these forms but have not read any solutions, despite many marked that way.  

The product is Adobe Reader DC (free version),

I now have this very version on my own desktop, there is no spelling dictionary.

I went over to a coworkers and asked them if they have spell check in Reader DC, they checked and nope they did not, they were sure they did.

Clearly something is going on here and would very much like to know what that is.   Has Adobe dropped spelling support in Reader DC? 

Reinstalling does not change anything, nor does downloading some odd language package, there was none to be found for this exact version, used the what seems to be the closest but it did not work. On it installed without error but did not correct the issue.

That may be a fix, of sorts, but only after the fact.  I have well over two hundred users, most just work around this by using Microsoft Word and copy paste.

All I can say now is that this seems to have nothing to do with me/us or our machines/OS etc. and all to do with Adobe.

Is there any light out there to shed on this issue?

Thanks,