@chag2020 , I followed your entry method per your reply ( rather than my preferred method of " I will choose what I work on " ) and the software behaved exactly as expected -- Only name of the payor and the Box-1 interest amount required.
Generally US treats all interest income the same way ( unless tax treaty calls out any restrictions etc. ) -- domestic or foreign.
For the interest income I used a name like Bancomer and a dummy amount of US$300.
Who is the payor of your interest income -- is it from a normal financial firm or as part of your OID for shares ?
Why did you go to 1099-OID and foreign account ? Did you actually have a 1099-OID to recognize ?
I do not see the issue you are reporting -- please help me duplicate the situation , so it can be resolved or reported . If you are uncomfortable sharing data her you can PM me ( just NO PII -- Person ally Identifiable Information )
pk
