According to TMZ, a string of issues caused Trippie Redd to back off being the opener. A source told the publication Trippie Redd allegedly was frustrated with Scott’s production crew on tour due to the amount of time it takes them to put together the elaborate setup Travis has for his show (an entire rollercoaster).
The sources noted Trippie Redd has no beef with Travis Scott, but he did not want to continue dealing with the delays that kept shortening his opening set time for each city they went to.
SOURCE: https://bit.ly/2UmH9AC