MB5 not working in Competitive

MB5 is bound to my ability 1, normally Reyna leer. As you can tell by the title, it's not working, and my mouse is working perfectly fine. Played this game for 2 months without any issues but now I can't find a new comfortable bind, and I do not know why this isn't working.

Works in Range but not in comp, I can bind button to mb5 but its still not working. Like wtf?

C

maybe that bind is not allowed in compi. have u put another keybind to MB5 other than ability 1? I am not much educated about this but I'll try to help.

dont use a gaming mouse , use a $4 office mouse

i used to ult on the E and it was happening the same. now i changed to mb5 and its working normally