erkal - just make sure you fit it the right way up! 🤪
Flat side (without any writing) faces down, and is the visible side when installed.
Bevelled side (which has wording such as cafelat, E61 etc) faces upwards and touches the group. That side is never visible once installed.
And lastly, make sure you read and watch Dave’s review of the machine, including maintenance tips and advanced settings. You may have done they already, in which case, just watch it all again. 🤪 - it’s a lot to take in.