After importing bank transactions from my bank via HBCI, KMM has tried to match some transactions with scheduled transactions, but it did some wrong matchingings. So I have unmatched the wrong transactions and tried to match the right ones.
KMM doesn't do it with the error message that I cannot match two imported transactions (but one of both isn't imported). I think the problem is that I previously unmatched it.
How can I match the two right transactions after unmatching?