Tier 6 Task (Laserflip, 360 Flip, Impossible, and Grind in one Line) not working

Not working for me eather

came here in hopes of a solution.. same deal.

https://youtu.be/jkK9Kq-Mf9g?is=wj12bF255RX8A4jW

This worked for me! :)

After restarting my game, I was able to complete this challenge. I still followed the sequence order; laser then, 360 flip, the impossible to grind. I just did it with manuals in between each trick until the grind. I just used a curb to grind.