[Xrystal]

I have a similar problem in nUI now that I have reinstated its action bars back to service.

nUI adds Keybinding info to the action button tooltip which of course no longer displays permanently due to the tooltip changes I presume.

Now, looking at your findings I tried to do something similar but it has gone belly up.

In PLAYER_LOGIN I have the following block of code - amongst other code

for i in pairs( nUI_ButtonBars.Bars ) do
    local bar = nUI_ButtonBars.Bars[i];
    for row in pairs( bar.Buttons ) do
        for col in pairs( bar.Buttons[row] ) do
            local button      = bar.Buttons[row][col];
            local key1, key2  = GetBindingKey( "CLICK "..button:GetName()..":LeftButton" );
 
            TooltipDataProcessor.AddTooltipPostCall(Enum.TooltipDataType.Spell, function(self)
                if key1 then GameTooltip:AddLine( nUI_L["Key Binding"].." 1: |cFF00FFFF"..GetBindingText( key1, "KEY_" ).."|r", 1, 1, 1 ); end
                if key2 then GameTooltip:AddLine( nUI_L["Key Binding"].." 2: |cFF00FFFF"..GetBindingText( key2, "KEY_" ).."|r", 1, 1, 1 ); end                                  
                if not key1 and not key2 then GameTooltip:AddLine( nUI_L["No key bindings found"], 1, 1, 1 ); end
                 GameTooltip:AddLine( nUI_L["<ctrl-alt-right click> to change bindings"], 0, 1, 1 );                                        
            end)
 
            button:SetScript( "OnEnter", function()
                if nUI_Options.combat_tooltips or not InCombatLockdown() then
                    button:SetTooltip()
                    -- Old Code used to be here
                    GameTooltip:Show();
                end
            end );
        end
    end
end

All but the TooltipDataProcessor open and close lines were already in the code, but initially inside the OnEnterScript.

It worked fine before Dragonflight but now inside OnEnter it briefly shows but then disappears, and outside OnEnter it shows a ton of lines running down the screen. Instead of the 1-4 I am expecting per button.

Anyone have any ideas on how I would get it working like before ?

Thanks in advance.


edit:
I also tried creating my own tooltip as follows:
local tooltip = CreateFrame("GameTooltip",nil,button,"GameTooltipTemplate")
And using this instead of GameTooltip but no difference.