5x AstralKeys/Lists/Friends.lua:658: attempt to call method 'GetUnit' (a nil value)
[string "@AstralKeys/Lists/Friends.lua"]:658: in function <AstralKeys/Lists/Friends.lua:655>
[string "=(tail call)"]: ?
[string "=[C]"]: in function securecallfunction' [string "@SharedXML/Tooltip/TooltipDataHandler.lua"]:60: in function <SharedXML/Tooltip/TooltipDataHandler.lua:55> [string "@SharedXML/Tooltip/TooltipDataHandler.lua"]:80: in function <SharedXML/Tooltip/TooltipDataHandler.lua:76> [string "@SharedXML/Tooltip/TooltipDataHandler.lua"]:116: in function <SharedXML/Tooltip/TooltipDataHandler.lua:106> [string "=[C]"]: in function SetAttribute'
....

Still happening on v3.70

@whatisboom Is there a consistent trigger? Are you mousing over the same thing when it happens?

@Khazakdk it was pretty consistent when mousing over something in Azure Span... probably from HandyNotes. I'm not sure the exact object but can try and get some repro steps at some point, although i'm pretty busy this weekend.

The Azure Pathfinder node in Azure Span repro's 100% of the time.

Helmet Missingwary and Beakers in Waking Shores too.

Hopefully that's enough to debug, let me know if you need more.

These are all HandyNotes nodes btw.

It definitely has something to do with handynotes when you mouse over an NPC icon (like a pet trainer npc, the little paw icon). Below is a more complete callstack showing that the handynotes handler called "handle_tooltip(tooltip, point, skip_label)" which is calling comparison:SetHyperlink(("unit:Creature-0-0-0-0-%d"):format(point.npc)) on line 961. That is resulting in the call to astral keys tooltip handler which is expecting a "self" parameter. I don't know lua very well, especially in the context of wow, but it seems in this context the Astral tooltip handler is expecting "self" but getting something else as the first parameter... so maybe a simple check to make sure self is the right type of object?

Stack: Interface/AddOns/AstralKeys/Lists/Friends.lua:658: attempt to call method 'GetUnit' (a nil value)
[string "@Interface/AddOns/AstralKeys/Lists/Friends.lua"]:658: in function <Interface/AddOns/AstralKeys/Lists/Friends.lua:655>
[string "=(tail call)"]: ?
[string "=[C]"]: in function securecallfunction' [string "@Interface/SharedXML/Tooltip/TooltipDataHandler.lua"]:60: in function <Interface/SharedXML/Tooltip/TooltipDataHandler.lua:55> [string "@Interface/SharedXML/Tooltip/TooltipDataHandler.lua"]:80: in function <Interface/SharedXML/Tooltip/TooltipDataHandler.lua:76> [string "@Interface/SharedXML/Tooltip/TooltipDataHandler.lua"]:116: in function <Interface/SharedXML/Tooltip/TooltipDataHandler.lua:106> [string "=[C]"]: in function SetAttribute'
[string "@Interface/SharedXML/Tooltip/TooltipDataHandler.lua"]:141: in function <Interface/SharedXML/Tooltip/TooltipDataHandler.lua:134>
[string "@Interface/SharedXML/Tooltip/TooltipDataHandler.lua"]:282: in function <Interface/SharedXML/Tooltip/TooltipDataHandler.lua:240>
[string "=[C]"]: in function securecallfunction' [string "@Interface/SharedXML/Tooltip/TooltipDataHandler.lua"]:237: in function <Interface/SharedXML/Tooltip/TooltipDataHandler.lua:236> [string "=(tail call)"]: ? [string "@Interface/AddOns/HandyNotes_DragonflightTreasures/handler/handler.lua"]:961: in function <...HandyNotes_DragonflightTreasures/handler/handler.lua:777> [string "=(tail call)"]: ? [string "@Interface/AddOns/HandyNotes_DragonflightTreasures/handler/handler.lua"]:1034: in function <...HandyNotes_DragonflightTreasures/handler/handler.lua:1010> [string "=[C]"]: ? [string "@Interface/AddOns/HandyNotes/HandyNotes.lua"]:56: in function <Interface/AddOns/HandyNotes/HandyNotes.lua:51> [string "@Interface/AddOns/HandyNotes/HandyNotes.lua"]:166: in function OnEnter'
[string "@Interface/AddOns/HandyNotes/HandyNotes.lua"]:399: in function <Interface/AddOns/HandyNotes/HandyNotes.lua:398>

Thanks for the further info. AK shouldn't be interacting at all with tooltips from HandyNotes, I will look into this.

@Khazakdk seems to be fixed for me in the 3.71 update! Thanks!

I have pushed what I hope is a fix for this, but I was unable to reproduce the problem myself to know if the fix will for sure work. Please let me know if the issue persists.