Jimmy Butler Saga: Part II.

The 76ers’ All-Star appears to be on track to ruin another NBA franchise this season after he “aggressively challenged” Sixers coach Brett Brown over his role in Philadelphia’s offense, ESPN reported, citing sources.

Butler, who moaned his way out of Minnesota earlier this year, allegedly was critical during a film session in Portland. Witnesses told ESPN that Butler’s critiques of Brown and the 76ers’ system were “disrespectful” and not something that would be considered normal between coach and player. Butler has also met privately with Brown and general manager Elton Brand about ways to integrate his style of play better in the 76ers’ offense, ESPN reported.

Brown, who signed an extension in the offseason, told Sixers brass he has no problem with the altercation, according to the report.

Butler was acquired to be the 76ers’ final piece of their Big 3 with Joel Embiid and Ben Simmons, but that assimilation hasn’t developed as they expected. Shortly after the trade, ESPN reported that both sides were optimistic on a long-term future, but that appears murky right now. League sources said Butler’s inability to mesh into the Sixers’ offense is causing concern among brass about his long-term fit with the team, especially with his possible free agency looming this summer.

The 76ers gutted two starters — Dario Saric and Robert Covington — along with Jerryd Bayless and a second-round pick to acquire the five-time All-Star and Justin Patton.

Butler, 29, infamously created a mutiny-like atmosphere in Minnesota after waiting nearly two months to be traded, including a toxic practice where he challenged teammates.

Since the mid-November trade, the Sixers are 14-8 and 25-15 overall.