[MC-17129] Can't move to a full size block from a 4/8 snow block.

There's a .gif to show the bug.

You can't move to a solid block unless it's snow. It works fine on a 5/8 snow block.

Linked issues

This ticket is invalid as it relates to a modded or 3rd party client/server.

Any non-standard client/server build needs to be taken up with the appropriate team, not Mojang.
Any plugin issues need to be addressed to the plugin creator.
This site is for addressing issues related to the base unmodded MineCraft.

How does it matter if I'm running a minimap and custom pause menu? Do I really need to get a fresh vanilla .jar in order that it's a valid bug? ^^

Yes. Even if the mod seems to be harmless it has modified your game. Will re-open if you can replicate the issue in Vanilla.

Fine, give me a minute.

Seems to be duplicate of MC-8777.