My second email to support:
"When I log in to the LastPass app with face ID or if I use face ID on the LastPass app to fill in a password/launch a site it autogenerates a password on my mobile device which it then stores in my vault. This entry simply says "Generated Password on Mobile Device" and when opened contains a password but no other information, so nothing related to a site, username etc. I have not requested a password to be generated, the act of logging in to Last Pass with face ID or launching a site and confirming with face ID for some reason generates this password. Throughout regular use of the app a build up of these "Generated Password on Mobile Device" appears in my vault and I have to go through and delete them all individually which is irritating. Several users experience the same issue and I link here to a forum post discussing it.
When I reported the problem to Support they suggested I clear my cache, refresh, log out and in again - I have done this and it has not resolved the problem. viewtopic.php?f=12&t=359285
"Reply from support:
We apologize for any inconvenience this trouble may have caused you.
I am sorry but currently this is an ongoing issue. Our Development team is aware of this and I can assure you they are working towards getting this sorted out. It will probably be fixed in one of further updates. Development team will do their best to fix this as soon as possible. Thank you for your kind patience.
In the meantime if we find any workaround or if there is anything new, I will inform you.
Have a nice day and stay safe!
Aleksa | Customer Support Representative