Hello!
I have problem with Bluetooth mode.
I setup 2 on-board profiles with the Razer Synapse in dongle mode. It worked with my computer.
When I switch to Bluetooth and connect to other computer which don't have Razer Synapse. The on-board profile didn't work any more. There is only one profile. I couldn't change the profile.
Summary:
PC1: Connected in 2.4Ghz (dongle mode). installed Razer Snapse. And mouse works well with dongle. Can switch profile with/without Snapse.
PC2: Connected in Bluetooth mode. Profile doesn't work anymore.