Click for building rant
Rant
Advanced building are gorram frakking over complicated and Zynga/ SGG only cares about 5* heroes as seen with THREE years without very simple quality of life improvements
([Suggestion] Production storage or consistent labeling ( 8+ links ) - #2 by Gryphonknight)
Reconvert
If your teammate recently unlocked a new Advanced storage building, they can be confusing Advanced buildings when they reconvert.
In the image below I have 2x Advanced farm level 10 and 1x Advanced farm level 1 available to reconvert.
So it hides 1x Advanced Farm level 10 and it is easy to select the only Advanced Farm level 1 ( were the frak is the Level 1 label ) instead of one of the two Advanced farm level
10.