Like most Universities, we have pooled our 3D printing resources and are producing PPE items. One of the Ulimakers that has come from a different department and it is behaving a little oddly. We are printing a shield design that needs the full bed of the Ultimaker and one one printer, it prints about 15mm forward in the Y-direction. This results in part of the design being flattened (at the extremity of the part) which is not a huge problem but occasionally we are seeing a layer shift. Amongst the printers, we are running 2 UM2+ and 3 UM2ex machines and they are all sharing the same G-Code. The rest of the printers produce identical prints that are correctly centred on the plate. I have performed a factory reset on the machine and there is no visible difference between the printers.
I have attached an image of the model printing in the correct and incorrect positions. Any idea what could cause this?