I’ve not had any recalls, but I have noticed several times on recent (2-4 year old) machines, the replacement pump has a larger heater chamber than the original and is supplied with a reshaped inlet cover for the sump in blue plastic to replace the dark grey one. This suggests downsizing of the pumps in these models, presumably intended to reduce water volume and hence improve energy efficiency had been taken too far, requiring further modification to improve reliability.
Whether this has anything to do with the problems you’ve had, I don’t know, but I guess it is worth checking you are using the most up to date parts information for the specific E-Nr.