This bug hasn't changed since the latest update (1.5) and I agree that climbing up a ladder with a trapdoor at the top is difficult. I am reporting two new separate bugs related to ladders.
@ Tails- That's useful to know, I didn't know about that so thanks.
@ Markku- Ok, I only spotted this by playing survival on a server only and forgot to try it on single-player using both modes. I tried it in creative and I agree, I can't reproduce but it's occurring on the server I'm playing on (ts3.jl2579.net) which is the combined server of 'James' and 'Cube' and is in the 'harmony world' in survival mode. There isn't any crash report that I can send or I don't know how to get one, how do I retrieve the seed, settings and location? Ie what info do you need? Because it's on a server I may not be able to retrieve the seed of the world.
Ok sorry, I didn't know there was a search bar. Apologies.
@ CubeTheThird- Ok, that makes sense.
@Torabi- I've tried it on different servers and the same problem occurs.
It worked suddenly when I did a debug (don't even know what it is but I was trying all the commands) and the options menu just started working again when I started and stopped debug.
I've just tried the first suggestion but couldn't find it in my saves folder. Unfortunately I didn't create a backup of the world (pretty stupid of me) so don't know what else I can do as I can't find the world in any of the folders in the Minecraft folder 😞
I Already searched for this Bug and I found it but found it as 'fixed', I didn't see any work in progress or open reports. Apologies.