Apparently I have heard rumors that they were or is bad blood between Felix Wazekwa and Karmapa.

Before Karmapa became big, I have been told by some that he sang on Felix's two albums

One was in 1997
PAUVRES MAIS


Second was in 2001
SIGNATURE


What would the cause of this conflict? Can someone tell me?

 Karmapa sang on this song only   but witnessed studio sessions to learn for his future career
the beef was created by karmapa back in the days as he was advised that to earn himself attention he had to have a rival so he started to attack wazekwa and  when karmapa wanted to explain to wazekwa not to take it seriously wazekwa refused to see him as he was pissed that somebody who he considers like his own  older brother(karmapa is soon 59 while wazekwa will be 55) attacked him on tv
but then few times after karmapa's father passed away and wazekwa went and lifted the coffin with  karmapa and from then they made peace,thats like 10 years ago