This is on the most recent version (1.9.7, Aug 30/17)

Cannot change bags. Obviously this is a result of the same issues that were (mostly) fixed today.

Until a fix is issued, open Interface\Addons\Adibags\Widgets\BagSlots.Lua, go to line 406, and change it to:
PlaySound(39512)

Just below it, change the other PlaySound function to:
PlaySound(39513)

Here's how the two functions look in the code: