each MLP stands on its own. unless you dispose of it in a fully taxable transaction, none of the business losses are deductible (portfolio income/loss/expenses are taxable or deductible based on what they are) and since the loss is not deductible nothing flows to the 8995. you have a QBI loss carryover.
likely your tax basis is the ending amount in section L. unless it's negative there should be no problems. have you been tracking tax basis since acquisition? Turbotax doesn't do it and since this is treated as a partnership, your basis is what you paid +/- net income/loss for all years - distributions for all years which should be the same as section L
don't know which version you are using but you should have come across questions about loss and qbi carryovers when entering the k-1. Maybe someone else will provide guidance or contact support.
