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There must be a difference in the service specification of the different nodes. Is this on one or on two PCs? Custom service?

You should check the md5 sums of the services on the respective machines with rossrv md5 PACKAGE/SRV and if they are not the same, you need to figure out which one to update.

There must be is a difference in the service specification of the different nodes. Is this on one or on two PCs? Custom service?

You should check the md5 sums of the services on the respective machines with rossrv md5 PACKAGE/SRV and if they are not the same, you need to figure out which one to update.