Google Cast error - Unable to find a view with path xxxx

Same-same with services tool:

Update: When I cast a path of 0,1,2,3 etc, the corresponding "non-lovelace’ view shows ok.
Maybe you need to somehome set Lovelace as the default view or something first on the device?
Or maybe it doesn’t work in with lovelace .yaml mode?
I’m just wildly speculating…