HPM stuck at App listing, won't allow NEXT

[LibraSun]

While using HPM to hunt up a user app that can manage a Ping application I have in mind, I was able to locate a suitable match (see screenshot), but nothing I do at that point seems to prompt HPM to go ahead and do the Install. Clicking NEXT does nothing.

Has anyone else run into this impasse? Does this mean the source code no longer is accessible by HPM? No accompanying error message appears, so I'm having to ask. Does that little black checkmark indicate that I already have this installed?

THANKS - Libra

[csteele]

Darkened Check mark there on the right means it's installed already. In effect, you've chosen nothing to install:

Looks like this if you are able to install it:

[LibraSun]

Oops, I had suspected as much, but saw no such thing as "Hubitat Ping Device" under Apps, which I now realize was the wrong place to go looking.... (it's a Device Driver, you idjit!)

....thanks for setting me straight!!