I've used KMyMoney since 2007, and never had a problem with reconciling my checkbook balance until about 3 months ago. Since then it always shows the previous months balance different than what is on my bank statement, and that is greyed out so I can't change it. I enter the ending balance and proceed anyway. The 'cleared' and 'balance' figures below the register used to change as I checked off entries, but now they stay static and showing the wrong balance. But at the end, the summary shows no outstanding deposits or withdrawls.

Also I keep an identical record in an app on my tablet which always shows the correct previous and current balances, and always reconciles using the same entries and figures as KMyMoney. And, as I add withdrawls to both of them during the month, the balances stay identical. And I have cross checked all entries and amounts in both programs, and they are the same. So KmyMoney seems to balance correctly, in spite of showing incorrect figures in places and the figures not changing as the entries are checked off. Any ideas if it is possible to fix this?
Thanks
Mike

I read this over and over again and I cannot think of anything that is causing such a behavior. The one thing that makes me wonder is your statement

The 'cleared' and 'balance' figures below the register used to change as I checked off entries, but now they stay static and showing the wrong balance.

which leads me to the question, which version of KMyMoney you are using? I just want to avoid chasing a moving target.

I'm using KMyMoney version 5.1.0

I just tried to reconcile an account using 5.1.0+ (that is head of the branch incl. all recent fixes) and I cannot duplicate the problem. When I switch any cleared transaction during reconciliation to between Cleared and Not marked the cleared balance at the bottom changes as does the difference. Assuming you're using a Linux operating system, you can try to get the stable AppImage version of KMyMoney and start that to see if it makes a difference. The page behind the link should give you enough information. No need to uninstall the version on your disk.

I checked the starting balance: it is taken from the ending balance of the last reconciliation run. So it is just for display purposes. Once the ending balance is correct and you have all transactions checked then finish the reconciliation and the numbers should be correct again. Immediately starting a reconciliation again should show the correct starting balance being the same value as the prior ending balance.

Keep a backup of your file so that you can go back in case something really strange happens.

I will download the most current image and try it on a copy of my KMM data file next time I need to reconcile it.