When the user changes password in windows domain/Azure Active Directory account then the Sharepoint data-connection is remembering the old password and all our Powerappsusing this sharepoint connection is not able to fecth data suddenly. No error is shown about wrong password og redirect to data-connections to change to the new password.
So all ON-PREM Sharepoint user dataconnections are In-valid with an old password for this user and the user cannot use the app anymore.
Manually solution for user
Right now the user has to goto web.powerapps.com | dataconnections and update password manually here if they can find the right Sharepoint Dataconnection themself...
The password on the dataconnection for Sharepoint Onlineis updated fine,but not for the On-prem Sharepoint connection.
When user change domain password, alle sharepoint dataconnections will be updated automatically with the new user password.
Right now the problem is on the On-Prem sharepoint connections.