I had the same problem. As a temporary workaround, I edited this file: ...\World of Warcraft\_classic_\Interface\AddOns\Bartender4\libs\LibActionButton-1.0\LibActionButton-1.0.lua
and on line 44, I replaced this:
local WoWBCC = (WOW_PROJECT_ID == WOW_PROJECT_BURNING_CRUSADE_CLASSIC)
0
In reply to asianhalfling:
I had the same problem. As a temporary workaround, I edited this file:
...\World of Warcraft\_classic_\Interface\AddOns\Bartender4\libs\LibActionButton-1.0\LibActionButton-1.0.lua
and on line 44, I replaced this: