I had an 1116 problem also that I fixed for a mere $17. I have the physical media version of TT. My return was rejected multiple times for "residence foreign country code."
In looking into this, I found that IRS has a lot of peculiarities about 1116s, such as the largest claim has to be listed first. Neither the step-by-step nor the final review picked these up, and you only learn them by clicking on the links in the program and reading the detailed documentation.
I ended up with two 1116s. Copy two was required because its single entry, from a partnership K-1, concerned taxes accrued, not paid, and I had learned through trial and error that accrued and paid taxes are incompatible on a the same 1116.
That copy two entry was for $17 in taxes, and I had over $1,000 in other foreign credits. I said the heck with it, let's see what happens, so I went back into the program and removed the report of those taxes. That cleared 1116 number two. I resubmitted the return, and it was accepted.
It was only $17 this year, but this is no way to do things long term. Better guidance from TT is essential.
