Home Remote not seeing my Chromecast devices

I have three Chromecasts in my house (one is a Chromecast TV). I tried adding the Chrome cast device source but it is reporting that I have no devices. My computer is on the same LAN network as the chromecast devices.

Any ideas?

Thanks!

I was able to get it to work. Looks like I had to create the chromecast device on my mobile phone first and then copy to my PC.

This link helped:
https://community.thehomeremote.com/t/google-cast-in-3-14-0/1040/31?u=begunfx