2.0.22a sort products by short description problem

[patben]

I update to new version and sort product by short description doesn't work. I have three sorting options by name, price, short description. The default is sort by short description but when i change to name for example, then when i change to short description again nothing happend. Also when i use sort by short description the go to next product button don't take me to the next product but in a random.

Thank you