Uservoice gave me a first confirmation of receiving my feedback. And since it's in english I will summarize it here: I gave feedback many time, all related to unstable connection / switching between Intel Nuc, k Macbook Pro and HP Probook. 2 USB receivers, 1x bt , mx master3 mouse and mx keys for mac. The nuc always has the usb receiver. On probook and macbook I tried it both ways with bt & usb. And the problem is always between those 2, no matter which one is bt or usb. The nuc is stable. And now with logi options+ it is a gamble/hassle to reconnect using usb, in options + there is no connect button. Same for bt, go to macbook/probook bt-settings and hope for the best. When is all works, including flow and combined with connected mx keys it's realy perfect. But malfunctions in switching is very annoying and time-consuming to resore.