Running Software (issues missing this information will be deleted):

• Addon version: 10.0.3-10.0.2
• Server patch: 10.0.0.46340

Have you read the changelog? (please don't waste our time)
Mark if read. Yes

Describe the bug
When left clicking the bag icon in the Bank to display the bags nothing happens

Error Logs
20x ...rface/AddOns/Bagnon/common/Wildpants/classes/bag.lua:188: bad argument #1 to 'GetBagSlotFlag' (outside of expected range 0 to 4294967295 - Usage: local isSet = C_Container.GetBagSlotFlag(bagIndex, flag))
[string "=[C]"]: in function GetBagSlotFlag' [string "@Interface/AddOns/Bagnon/common/Wildpants/classes/bag.lua"]:188: in function Update'
[string "@Interface/AddOns/Bagnon/common/Wildpants/classes/bag.lua"]:124: in function RegisterEvents' [string "@Interface/AddOns/Bagnon/common/Wildpants/classes/bag.lua"]:73: in function <...rface/AddOns/Bagnon/common/Wildpants/classes/bag.lua:18> [string "=(tail call)"]: ? [string "@Interface/AddOns/Bagnon/common/Wildpants/classes/bagGroup.lua"]:17: in function <.../AddOns/Bagnon/common/Wildpants/classes/bagGroup.lua:11> [string "=(tail call)"]: ? [string "@Interface/AddOns/Bagnon/addons/main/frame.lua"]:285: in function CreateBagGroup'
[string "@Interface/AddOns/Bagnon/addons/main/frame.lua"]:265: in function PlaceBagGroup' [string "@Interface/AddOns/Bagnon/addons/main/frame.lua"]:91: in function Layout'
[string "@Interface/AddOns/Bagnon/addons/main/frame.lua"]:66: in function Update' [string "@Interface/AddOns/Bagnon/addons/main/frame.lua"]:56: in function RegisterSignals'
[string "@Interface/AddOns/Bagnon/common/Wildpants/classes/frame.lua"]:19: in function <...ace/AddOns/Bagnon/common/Wildpants/classes/frame.lua:17>
[string "=[C]"]: in function Show' [string "@Interface/AddOns/Bagnon/common/Wildpants/api/frames.lua"]:85: in function Show'
[string "@Interface/AddOns/Bagnon/common/Wildpants/features/autoDisplay.lua"]:47: in function <...Ons/Bagnon/common/Wildpants/features/autoDisplay.lua:46>
[string "@Interface/AddOns/Bagnon/common/Wildpants/features/autoDisplay.lua"]:82: in function `ShowFrame'
[string "@Interface/FrameXML/PlayerInteractionFrameManager.lua"]:215: in function <Interface/FrameXML/PlayerInteractionFrameManager.lua:212>

Locals:
(*temporary) = -1
(*temporary) = 2
(*temporary) = "outside of expected range 0 to 4294967295 - Usage: local isSet = C_Container.GetBagSlotFlag(bagIndex, flag)"

My bank is also not displaying some bank bag/slots, so this issue prevents accessing the bags display to re-enable that bag's visibility.

I've found the error on Bagnon/common/Wildpants/classes/bag.lua. In the function Bag:Update() is using:

local active = C_Container and (id > NUM_BAG_SLOTS and C_Container.GetBankBagSlotFlag(id - NUM_BAG_SLOTS, 2^i) or C_Container.GetBagSlotFlag(id, 2^i)) or GetBagSlotFlag and (id > NUM_BAG_SLOTS and GetBankBagSlotFlag(id - NUM_BAG_SLOTS, i) or GetBagSlotFlag(id, i))

The issue is with GetBankBagSlotFlag I dont know if Blizzard disabled this function from C_Container. My solution meanwhile is comment this line and setting active as false

--local active = C_Container and (id > NUM_BAG_SLOTS and C_Container.GetBankBagSlotFlag(id - NUM_BAG_SLOTS, 2^i) or C_Container.GetBagSlotFlag(id, 2^i)) or GetBagSlotFlag and (id > NUM_BAG_SLOTS and GetBankBagSlotFlag(id - NUM_BAG_SLOTS, i) or GetBagSlotFlag(id, i))
local active = false

I cannot use my bank either no bag is shown

Same

4x ...rface/AddOns/Bagnon/common/Wildpants/classes/bag.lua:188: bad argument #1 to 'GetBagSlotFlag' (outside of expected range 0 to 4294967295 - Usage: local isSet = C_Container.GetBagSlotFlag(bagIndex, flag))
[string "=[C]"]: in function GetBagSlotFlag' [string "@Interface/AddOns/Bagnon/common/Wildpants/classes/bag.lua"]:188: in function Update'
[string "@Interface/AddOns/Bagnon/common/Wildpants/classes/bag.lua"]:124: in function RegisterEvents' [string "@Interface/AddOns/Bagnon/common/Wildpants/classes/bag.lua"]:73: in function <...rface/AddOns/Bagnon/common/Wildpants/classes/bag.lua:18> [string "=(tail call)"]: ? [string "@Interface/AddOns/Bagnon/common/Wildpants/classes/bagGroup.lua"]:17: in function <.../AddOns/Bagnon/common/Wildpants/classes/bagGroup.lua:11> [string "=(tail call)"]: ? [string "@Interface/AddOns/Bagnon/addons/main/frame.lua"]:285: in function CreateBagGroup'
[string "@Interface/AddOns/Bagnon/addons/main/frame.lua"]:265: in function PlaceBagGroup' [string "@Interface/AddOns/Bagnon/addons/main/frame.lua"]:91: in function Layout'
[string "@Interface/AddOns/Bagnon/addons/main/frame.lua"]:66: in function Update' [string "@Interface/AddOns/Bagnon/addons/main/frame.lua"]:56: in function RegisterSignals'
[string "@Interface/AddOns/Bagnon/common/Wildpants/classes/frame.lua"]:19: in function <...ace/AddOns/Bagnon/common/Wildpants/classes/frame.lua:17>
[string "=[C]"]: in function Show' [string "@Interface/AddOns/Bagnon/common/Wildpants/api/frames.lua"]:85: in function Show'
[string "@Interface/AddOns/Bagnon/common/Wildpants/features/autoDisplay.lua"]:47: in function <...Ons/Bagnon/common/Wildpants/features/autoDisplay.lua:46>
[string "@Interface/AddOns/Bagnon/common/Wildpants/features/autoDisplay.lua"]:82: in function `ShowFrame'
[string "@Interface/FrameXML/PlayerInteractionFrameManager.lua"]:215: in function <Interface/FrameXML/PlayerInteractionFrameManager.lua:212>

Locals:
(*temporary) = -1
(*temporary) = 2
(*temporary) = "outside of expected range 0 to 4294967295 - Usage: local isSet = C_Container.GetBagSlotFlag(bagIndex, flag)"

I am having this issue as well. Bank wouldn't show up at all but deleting the saved bagnon variables worked to get it back but when I left click to "show the bags display" nothing happens. I do not even get a error popup.

The issue is with GetBankBagSlotFlag I dont know if Blizzard disabled this function from C_Container. My solution meanwhile is comment this line and setting active as false

--local active = C_Container and (id > NUM_BAG_SLOTS and C_Container.GetBankBagSlotFlag(id - NUM_BAG_SLOTS, 2^i) or C_Container.GetBagSlotFlag(id, 2^i)) or GetBagSlotFlag and (id > NUM_BAG_SLOTS and GetBankBagSlotFlag(id - NUM_BAG_SLOTS, i) or GetBagSlotFlag(id, i)) local active = false

Can confirm this works to get bag display showing again
Just be sure to comment out both lines 188 and 189 in bag.lua followed by the local active = false

After a bit more messing, I think I have a solid fix. I pull requested this to the authors but until they accept or implement it themselves another way, you can see the changes necessary here:
Jaliborc/Wildpants#85