After latest Reset neither the 48 Hours AH Duration or the Undercut are working. Tried to restart, relog the game but nothing worked. Full Scan worked just fine so I'm guessing this is something related to an update Blizz made.

Both Undercut and Duration are not working in the Selling Tab. Sorry if I forgot to mention that before.

Do the settings show correctly on the settings page? (can you screenshot your settings)

The latest update to Auctionator moved the duration and undercutting stuff to the "Selling" tab - hijacking the blizzard tab caused some throttling issues, so we had to move the features.

See https://github.com/Auctionator/Auctionator/wiki/8.3.2-Release

Never mind and you're right. I was doing everything wrong. Since is easy for me to look at the bags instead of the bag view, I was right clicking the item in my bag and did not noticed the tab changed from the TAB Selling to the Sell TAB and that's why I made a suggestion to include an option in the bag view to ignore items that are in our bags and we don't want to sell. It will reduce the amount of items you will see in the bag view making easy to work with the Bag view. Not a big deal though since I learned that I just need to alt click the item in my my bag (while in the Selling TAB) and everything will work as it should, both undercut and duration.

thanks much and I'm sorry again.

Using alt+click works even if you're in another tab (and you can configure right click to work with the selling tab in the "Selling" options screen.

No worries 🙂