If I press both Q and one of number keys at the same time to trash an item, that item begin to be strange.

What I expected to happen was...:

When I press both Q and one of number keys at the same time to trash an item, I expected that item will be remove.

What actually happened was...:

The item was remained. In fact, it was removed but it was remained visually.

When I press Q and number key(something exists in slot) to trash an item, something that exists in slot removed forever and the item that actually I trashed remained visually.

Steps to Reproduce:

1. Put any item slot 1 and slot 2. And press 1(number key on keyboard)

2. Press Q and 2(number key on keyboard) at the same time.

3. Then, this bug will be happen.