Wyze hand vac "what could be better"

Been using my handheld vac for a few months, and even before much use the attachments just wont stay on the vacuum. They fall off constantly, and thats very frustrating since you really cant use the vacuum without some kind of attachment. It also could use a clearer marking for lining up the canister when replacing after cleaning. Just a little arrow will do, its what one would expect.