I am not sure if its the same issue but there is a bug where one of the workarounds is you have to delete and replace the SUM directory everytime you want to apply patches. I am pretty sure there is a sap note about this.
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I am not sure if its the same issue but there is a bug where one of the workarounds is you have to delete and replace the SUM directory everytime you want to apply patches. I am pretty sure there is a sap note about this.