Hello, I was playing FTB Revelations v 1.8.0 with a friend and we finally made the Mantle today and attuned it to Vicio. We were unable to fly and it seemed to have no effect. I downloaded the latest version of astral sorcery 1.12.2-1.8.10 and loaded it up and attuned the other mantel with Vicio, no flight still. Spawned one in creative and went back to survival and no flight. I saw a post back from I think November 2017 saying this was fixed in the next version but there is like 7 versions after November. Haaalp plz.

The Vicio mantle doesn't provide creative flight, it functions like an Elytra. So if you were double jumping from the ground level and nothing was happening, that's intentional. Because it's an Elytra.

If that's not the case, going to need more information on what you're seeing happening, and how to reproduce, because the last fix for certain servers having issues was indeed inside the 1.8.10 update.

@Lunarclipse any followup to my above post? Need information or I'm closing this one this weekend.