Mr Beast went through four controversies in a short amount of time:
Content warning: Sexualization of minors
(1) Ava Kris Tyson (former Mr. Beast member) was shown to be a fan of an artist called Shadman that is known for drawing cartoon porn including "Loli" (drawings of sexualized children), and who drew the 8-year old daughter of a Youtuber. Ava bought some of Shadman's art (a non-pornographic piece is seen on a Mr. Beast video), and also made some loli-related comments in the past. It is not clear whether Mr. Beast was aware of this and whether he was also a fan of this content.
(2) There was evidence of the group running a discord with minors in which sexual topics were discussed. Ava was accused of "grooming". Discord chats were leaked and they confirmed the claims about Ava making a lot sexual jokes with a group of minors, but whether this is "grooming" is up for debate, as some consider adults being "edgy" with children not to meet the threshold for "grooming".
In response to both of these, Mr. Beast cut Ava out of Mr. Beast.
(3) There is a "Beast Games" show being produced by Mr. Beast for Amazon Prime. It turns out that putting 2,000 people to compete for 5 million dollars in Las Vegas was a recipe for organizational disaster. People had issues getting their medicines and underwear. People were fed low-calorie meals like a small amount of cold oatmeal and an egg spread at irregular intervals. Some people had seizures and the local hospital reported several injured visitors from the games. It was reported that the team invited people of all ages and then made them compete in physical games for which young men had a very significant advantage over the old players that were also cast. You can see an article about this here, and in the comments you can see many players sharing their bad experiences: https://www.casino.org/vitalvegas/mrbeast-shoots-beast-games-in-las-vegas/
(4) A person who has an employee for a short amount of time released a video in which he claimed a lot of Mr. Beast videos are faked/rigged. He also mentions multiple examples in which Mr. Beast broke lottery laws.
What if houses just lazy?