Sched K-1, State Sched includes many states. All show either 0 or neg(loss) ordinary income but some Gross Receipts in small amounts. Does this require state tax forms?

It depends. As you have seen, some states expect you to file a return for any income and even if you have a loss. Other states have minimum income targets for a nonresident return. But in nearly all cases, states apply a reasonableness standard, in case the cost to file the return exceeds the income (or tax) that would be reported.

Bottom line: It's up to you. If you were allocated significant income from a state, check to see if they offer free e-filing from the state website. But if the income was quite low, you could simply wait to see if the state sends you a tax bill.