Mudvayne was an American heavy metal band from Peoria, Illinois formed in 1996. They are known for their sonic experimentation, innovative album art, face and body paint, masks and uniforms. The band has sold over six million records worldwide, including nearly three million in the United States. The group consisted of Chad Gray (lead vocals), Greg Tribbett (guitar, vocals), Ryan Martinie (bass guitar) and Matthew McDonough (drums).

In 2010, Mudvayne again paused to allow Gray and Tribbett to tour with Hellyeah, and because of the supergroup's album releases the band would be on hiatus until at least 2014. With Hellyeah, Tribbett has recorded three albums: Stampede, Band of Brothers, and Blood for Blood. Gray has contributed to an additional fourth album, Unden!able. In 2012, Ryan Martinie toured with Korn as a temporary replacement for bassist Reginald Arvizu, who remained at home during his wife's pregnancy. The following year Martinie played bass on Kurai's debut EP, Breaking the Broken, and in 2014 Tribbett left Hellyeah. In a new interview with Songfacts in 2015, Gray said that Mudvayne's return seemed unlikely: "I don't know if the full band will [ever reunite]. Who knows -- they might be putting something else together. We were talking for a while and that whole thing with Greg [Tribbett's 2014 departure from Hellyeah] went down and everything kind of fell apart. Our relationship, which was the only truly solid relationship in the group, although Matt [McDonough] and I are still great, Ryan [Martinie] and I still briefly talk. I mean, the only way I personally would want to do Mudvayne is if everybody licked their wounds and got over it. There's a lot of things in that band that tore us apart. Maybe Mudvayne was the martyr for people that stopped supporting music. You sell 159,000 records the first week, and then the next record is like, 'Whatever, f--k it.' Maybe it's a subliminal message if you don't support things... Mudvayne's probably bigger now than it ever was. So, people want what they can't have." In 2015, former Mudvayne members Tribbett and McDonough formed the band Audiotopsy with Skrape vocalist Billy Keeton and bassist Perry Stern. Audiotopsy describes its sound as "progressive hard rock." Answer this question using a quote from the following article:

Besides touring band members, what other causes were there for the band breaking up?
Gray said that Mudvayne's return seemed unlikely: "I don't know if the full band will [ever reunite]. Who knows -- they might be putting something else together.