Change the list of equipment while sort by Crit section cause error

[binaryspica]

Environment

Ver 0.47.5~0.47.6
Windows 10

Description

Although I have seen the bug on 0.47.5, but I can't reproduce when it does so I didn't report it. But just now I can get how to do(and perhaps why it occurs). It only occurred on 0.47.5 and 0.47.6, but not 0.47.4.

You can cause the bug by following this step:

1. First, move to Equipment tab.
2. Choose any list as you want.
3. Click 'Crit' and sort by critical slots.
4. Then change the list to either Physical Weapons, All Weapons or Other Equipment.
5. See the difference? Now the list is down and you can't see anything correctly. Even if you click the other line and sort by the other element, it doesn't bring back to the normal state.

I think that the reason is the item with 'Crit' value of 'variable'. Only the lists with such items are cause the error, such as Hatchet of Physical Weapon and Targeting Computer of Other Equipment.

Edit: But the weird thing is, 'Ton' line doesn't cause the same problem, despite there are also some items with Ton value of 'variable'. The bug only occurs when you sort by Crit.