First let me thank you for posting what you did to get past this issue. I will likely do exactly the same thing so I can get filed.
That said, "Various" is absolutely a correct, and in the case of RICs, arguably the only correct value to be put into this field. I looked at my forms 1116 for several years back as filed and "Various" was the only value ever entered for date paid.
The bug, then, is not that TurboTax is putting in "Various", but that the IRS is rejecting "Various". Nevertheless, I consider entering 12/31/2020 a harmless inaccuracy that I doubt the IRS will ever question anyone about (since the date is irrelevant in the vast majority of 1116s filed for mutual funds at relatively normal incomes), and this information is supporting info only that the IRS does not keep in its in transcript.
Update: I e-filed this and this time it was not rejected .. for this reason but for an unrelated equally mysterious reason. Sigh.
Note that if you choose to use this workaround, the date of 12/31/2020 should be entered in that space on the 1116 Comp Wks. That way, you don't have to use Override.
