Gergely,
There seem to be an issue with aircraft having passed a waypoint and the route not being updated. This is a case where I was controlling upper EKDK ACC airspace while the aircraft is transitioning from Lower ACC to CH TMA.
As can be seen it affects the DistanceToGo estimates and places the aircraft at a wrong point in the Arrival sequence. Its even worse with SAS64C that is way in front of DLH2GY.
The issue causes incorrect calculations and sequencing in Arrival managers like AMAN here or the MAESTRO plug-in. All the 3 appear to Upper ACC still to be Direct MONAK, but I expect this is because directs are not pushed/broadcast to positions upstream.