After enabling hide markup in markdown-mode, yasnippets has responded weirdly to tab jump points (meaning $1, $2, $0, etc).

For instance, when using yasnippet link with code [${1:Link Text}](${2:URL} $3) $0, cursor will start at $1. Pressing tab with markup hidden will cause a jump to the end of the snippet (not $0, but after it, confirmed by playing with the code on my system).

edit: made it clearer that I'm enabling hide markup. Meaning markup notation is actually used in buffer (ex. ** Bold ** becomes Bold).