i have no way to know if the loss shown on the 2017 return was proper. Was it deducted? Next, whether, if proper, that loss created an NOL. if it did, without a c/f election that NOL: would have had to been carried back to a prior year and only the unused portion carryforward. next, it's probably too late to amend any year later than 2021 due to the general 3-year statute of limitations.
also unknown is how you exited the partnership? did the partnership terminate?
not sure why there would be any amount is your ending tax basis
Without seeing all the k-1's and the reporting on your 1040s, I can't give you an answer. There are too many unknowns.
you'll have to either decided what to do or consult a pro to go over your filings
i would say this but it's a generality and based on correctly completing the k-1s in Turbotax for all those years. it should have only carried forward the unallowed passive losses.
