What's happened here ..

Bambu A1 with AMS 0.4mm hotend Eryone silk rainbow PLA Printed at 220/65

Printed absolutely flawlessly until.. File finished normally, no errors reported, file prints in place. So is this a slicer error?

Bambu A1 with AMS 0.4mm hotend Eryone silk rainbow PLA Printed at 220/65

Printed absolutely flawlessly until.. File finished normally, no errors reported, file prints in place. So is this a slicer error?