I'm seeing at least one report dating from September of last year on their forums:
https://forums.lenovo.com/t5/Lenovo-P-Y-and-Z-series/Lenovo-...
https://forums.lenovo.com/t5/Lenovo-P-Y-and-Z-series/Lenovo-...
Ugh. Patronising, misleading and evading the point all in one answer. This was a horrible thread to read.