Wayne filed a $51 million (£39 million) lawsuit against his Cash Money Records boss in early 2015 accusing his former mentor of withholding money he was allegedly owed for his album Tha Carter V, which remains unreleased.
In September (16), Birdman was ordered to hand over his accounting records to Wayne's lawyers so they could determine how he allegedly spent the $70 million (£54 million) they were supposed to split from a $100 million (£77 million) advance given by executives at parent company Universal Music Group.
Now, TMZ reports that a source close to both parties claims lawyers acting for the musicians were close to reaching a deal on their $51 million (£39 million) lawsuit.
However, after Wayne publicly criticised Birdman, real name Bryan Williams, at a concert earlier this month (Nov16), by changing the lyrics of song I'm Me from, "I'm a m**her f**king Cash Money millionaire" to shouting out Jay Z's Roc-A-Fella instead, Birdman has allegedly called a halt to the negotiations.
The Lollipop hitmaker, real name Dwayne Michael Carter Jr., signed a deal with Jay Z and Tidal last summer (15) to be an artist/owner at the streaming service. And as Birdman reportedly doesn't get along with the Encore rapper, it made the comment that bit more pointed.
The She Will rapper also shouted "Suck my d**k!" at the same show and subsequently a source tells the news outlet that Wayne's latest outburst has prompted Birdman to pull the plug on a meeting which was hoped would finally resolve the lawsuit.