That one rare number bug

You guessed it.

Sometimes I get the rare number bug too

Yeah, kids need to make a better combination system, not just fixing the bugs. That's a suggestion for another day though.

This bug also seems to display objects that were in your inventory but are currently not.

proposed solution: automatically close combine window after 20 seconds.

Another solution: draw a completely blank grid before redrawing the inventory. It would clear all the garbage artifacts, thereby eliminating the bug.

Or you know, you could just not have a combination verb, and instead allow for drag and drop behaviour when dropping one item on to another. Combining an item with itself is a silly mechanic anyway, a right click verb for whatever action mixing two of the same color berry for instance does should simply exist and avoid all of this redundant code/interface.

Or you know, you could just not have a combination verb, and instead allow for drag and drop behaviour when dropping one item on to another. Combining an item with itself is a silly mechanic anyway, a right click verb for whatever action mixing two of the same color berry for instance does should simply exist and avoid all of this redundant code/interface.

You're forgetting combining two items in separate inventory tabs.

The inventory tabs are kind of silly regardless, why not just use a grid for the inventory pane entirely and not have a popup combine window. I dont see the point in having categories of inventory, so many verb panels, etc.

The only tabs that should exist are:

Verb commands
Build
Inventory

There is no reason why the build tab cannot have section headings for masonry and carpentry, no reason to put them in a separate tab. Hell instead of worrying about masonry/carpentry why not just put the cost next to each build verb:
Wood floor (1W) etc.

The interface needs some work, but the combine verb is clearly one of the most problematic and redundant. Also, probably if you want building mechanics to require CTRL+click you should say something to that effect the first time a new player attempts to build something (ie log keys for first time build + popup window).

I like having my tools/weapons and clothing in a separate tab from my already cluttered tab that holds all my food, seeds, wood, stone, shackles, and such.

It'd be sheer chaos to have my clothing and weapons/tools in that tab also. I'd be scrolling like mad looking for which disguise, or tool I need, or to find my sword to unsheathe it to fight that ambush that just sprung.

There are just better ways to do it, for instance you shouldnt have to quickly equip armor or weapons due to circumstance. Clothing like robes should be layerable over your armor, swords should be able to be sheathed (using hotkeys or on screen hud items) without unequipping them. The inventory tab could contain subsections within the single tab. Instead of having limited space that requires scrolling, you could use a proper grid to fit a minimum of 3x more items on the screen at a time, you could then organize the grid in to sections such as Armor, food, resources, items etc without using separate tabs. There are lots of great ways that the interface of CowRP could be improved. Frankly every command should correspond to an onscreen hub object, anything outside of that should be removed or reduced. Anything super misc such as abandon mob could be put in to an options button on the screen with a popup. There are a lot of ways the make the game user friendly and more simple.

Put that in the Suggestions forum, not Bug Reports.

It relates to solving the bug which arose from having too many disconnected interface panes and redundant inventory views. I wouldn't bother to make suggestions here as my understanding is that CowRP hasn't been updated since 2010 in any significant way.

The game HAS Updated.

The latest significant update was 3.0 which was released sometime in 2011/2012. Lots of bug fixes and additions.