Joining Field Errors (67)

I am having an issue joining fields. The first field I'm joining looks like this in my data:

I am joining it to this:

The second field I'm joining looks like this in my data:

I am joining it to this:

I keep receiving an error stating the following:

Error: Join (67): String fields can only be joined to other string fields.

The types are the same and I have even modified the data sizes to match but still keep getting the join error. I'm quite baffled since I have plenty of other joins in my workflow that work just fine. Any guidance or assistance would be greatly appreciated.

Thank you in advance,

--Kim