What steps will reproduce the problem?
1. open the options screen, and select the correct layout for my pet ("Pet" in my instance)
2. go to "bars" and "experience bar" and enable it
3. i've set it up so that is is a vertical bar, on the right of the petblock

What is the expected output? What do you see instead?
I expect to see the exp.bar But it keeps disappearing, if it appears at all (most of the time it doesnt!). Reload UI doesnt help, nor relogging. I've seen it once, but it disappeared pretty soon while playing (I believe after pet-levelup).

What version of the product are you using?
the most recent (updating daily!)

Do you have an error log of what happened?
nope

Please provide any additional information below.
I've made screenshots of my setup and the pet-block on my UI. The expbar should be located at the right, opposite of the castbar. This is for my alt (hunter). My main is a warlock, for witch the pet doesnt require an expbar. But I havent disabled it myself in the setup of my main. As far as i know, the setup is global and not character specific.