First sorry fot my poor english, i hope i will explain my problem correctly.
So my problem seems to have appeared after a MiHome update (5.3.9), well I can perfectly match my Yeelight RGB bulb to MiHome (after a reset of the bulb) but impossible to connect it to the Yeelight app.
And of course if I make a new reset of the bulb I can connect to the Yeelight app but it is MiHome who can not connect to it.
In both cases the bulb is well detected but in the 2 app but impossible to bind to both, it is either one or the other.
So despite all that annoy me because the 2 apps have a purpose for me (I will not go into details but Yeelight is useful for Jeedom and Mi Home for some features) so I hope to find a solution to this strange bug .
Thank you for your help.