Version 2.5.6 still works here.
I am running El Capitan—OSX 10.11.1
Occasionally I get NA on time remaining, but relaunching usually fixes it.
My logged in button is sometimes green, sometimes yellow, but it doesn’t matter.
Sometimes finished auctions don’t move to the complete folder.
I move manually, or relaunching usually fixes that as well.
Yes,sort of buggy, but it works, and I win snipes.