Views arguments across different panels cannot be different

I have a view that accepts an argument. I want to display that view in two different panels, using two different arguments to effectively produce two different pages.

I enter the first argument into the first panel (say, 'argA') and save. I go into the second panel and enter the second argument into the view ('argB'), save. If I then go back to the first panel, it says it's using the argument 'argB'. If I change it back to 'argA' and save, then go back to the second panel, it says it's now using 'argA'!

I've also noticed that the same is true of the overriden title; in the first panel's view, I set the title to 'titleA' and the second panel's view the title is 'titleB'. When the arguments atrt playing up, so do the titles. I.E. both panels end up using the last title and argument I set, regardless of where I set it.

Hopefully someone else can confirm this suspected bug. I'll try and reproduce this on my test site as well.