TBC Beta Support?

Message: [string "Lib_DropDownList1MenuBackdrop:OnLoad"]:1: attempt to call method 'SetBackdropBorderColor' (a nil value)
Time: Sun Apr 4 15:18:05 2021
Count: 1
Stack: [string "Lib_DropDownList1MenuBackdrop:OnLoad"]:1: attempt to call method 'SetBackdropBorderColor' (a nil value)
[string "*:OnLoad"]:1: in function <[string "*:OnLoad"]:1>
[string "=[C]"]: in function `CreateFrame'
[string "@Interface\AddOns\Tukui\Libs\DropDownMenu\UIDropDownMenu.lua"]:24: in main chunk

Locals: self = Lib_DropDownList1MenuBackdrop {
0 = <userdata>
(*temporary) = nil
(*temporary) = Lib_DropDownList1MenuBackdrop {
0 = <userdata>
(*temporary) = 1
(*temporary) = 1
(*temporary) = 1
(*temporary) = "attempt to call method 'SetBackdropBorderColor' (a nil value)"

TBC Beta Support?  [Accepted Answer]

Beta hasn’t even had addons enabled for a week yet.

There isn’t Beta support as there isn’t a current stable working version yet.

Once it is working, and stable, then feedback, issues will be taken.
Back up your ElvUI profile/s - ElvUI menu - Profiles - Export and save it regularly

My replies might be short due to time constraints. Nothing personal. (Thanks Blaze)

TBC Beta Support?

This is why we made it private. We had it public but people was downloading it and giving these reports as we are actively working on it and it's being counterproductive. So from now on each classic version will be private until they are stable.