Conversation so far:
What is an example of an external matter?
Tha Dogg Pound had beef with Bone Thugs-N-Harmony.
what was their beef about?
due to Death Row Records being embroiled in a feud with Eazy-E's Ruthless Records.
how did their beef resolve?
The feud ended when Snoop Dogg and Kurupt were featured on Krayzie Bone's album Thug Mentality 1999 in the song "The War Iz On.
did they have beefs with any other artists?
Tha Dogg Pound were also involved in a feud with B.G.
Knocc Out & Dresta.
how did that feud turn out?
They have since squashed the beef and released a song called "Blaze It Up", as a bonus track on Tha Dogg Pound's Dogg Chit album.

Question: were there any more external matter which caused problems?
Self-contained rewrite: Were there any more external matter like Tha Dogg Pound's which caused problems?