i can pair all buttons but only one is working

[wmmudde]

hello,

ik just use the Broadlink RM Pro Plus and i have a 433mhz curtain switch.
On the curtain switch i paired a remote control and all is working properly.

Now when i learn the 3 buttons with Homey and RM Pro the commands are learned properly but when i run the commands only 1 of the 3 is working.
can this be fixed??