When standing on a ladder, and quickly jumping to initiate your elytra to shoot down the ladders, the player just grabs the ladders and starts the slow descend down. The same happens when I try to use fireworks from the bottom to quickly fly up the ladders. This worked in previous versions and it was amazing to do.
Comments 2
The report MC-90212 was valid and was fixed, so this is Working As Intended.
Hello!
Try sneaking while activating Elytra – Holding Shift (Sneak) might help you bypass the ladder grab.
Use a trapdoor – Placing a trapdoor above the ladder can help push you into Elytra flight mode.
Jump slightly away from the ladder before activating Elytra – Moving a bit sideways could prevent the game from registering you as climbing.
If this was an unintentional change, it might get fixed in future patches. You can also report it as a bug on the official Minecraft bug tracker.