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

• Addon version:10.1.4
• Server patch: 1.14.4(51056)

Have you read the changelog? (please don't waste our time)
Yes
Describe the bug
Alt-clicking feature doesn't work

To Reproduce
Steps to reproduce the behaviour:

1. Open bags
2. Hold Alt and click on any item
3. See error

Expected behaviour
Flashing same items in bags

Screenshots
not relevant

Error Logs
99x BagBrother/core/classes/itemGroup.lua:71: attempt to index field 'Flash' (a nil value)
[string "@BagBrother/core/classes/itemGroup.lua"]:71: in function ?' [string "@BagBrother/libs/CallbackHandler-1.0-8/CallbackHandler-1.0.lua"]:119: in function <...her/libs/CallbackHandler-1.0/CallbackHandler-1.0.lua:119> [string "=[C]"]: ? [string "@BagBrother/libs/CallbackHandler-1.0-8/CallbackHandler-1.0.lua"]:29: in function <...her/libs/CallbackHandler-1.0/CallbackHandler-1.0.lua:25> [string "@BagBrother/libs/CallbackHandler-1.0-8/CallbackHandler-1.0.lua"]:64: in function SendMessage'
[string "@BagBrother/libs/WildAddon-1.0-1/WildAddon-1.0.lua"]:83: in function `SendSignal'
[string "@BagBrother/core/classes/item.lua"]:114: in function <BagBrother/core/classes/item.lua:112>
[string "=(tail call)"]: ?
[string "@BagBrother/frames/containers/item.lua"]:46: in function <BagBrother/frames/containers/item.lua:45>
[string "=[C]"]: ?

Locals:
self = Frame {
0 =
buttons =

{
}
order = {
}
frame = BagnonInventory1 {
}
bags = {
}
}
_ = "BAGNON_FLASH_ITEM"
itemID = 5206
(for generator) = defined =[C]:-1
(for state) = {
1 = BagnonContainerItem55 {
}
2 = BagnonContainerItem56 {
}
3 = BagnonContainerItem57 {
}
4 = BagnonContainerItem58 {
}
5 = BagnonContainerItem1 {
}
6 = BagnonContainerItem2 {
}
7 = BagnonContainerItem3 {
}
8 = BagnonContainerItem4 {
}
9 = BagnonContainerItem5 {
}
10 = BagnonContainerItem6 {
}
11 = BagnonContainerItem7 {
}
12 = BagnonContainerItem8 {
}
13 = BagnonContainerItem9 {
}
14 = BagnonContainerItem10 {
}
15 = BagnonContainerItem11 {
}
16 = BagnonContainerItem12 {
}
17 = BagnonContainerItem13 {
}
18 = BagnonContainerItem14 {
}
19 = BagnonContainerItem15 {
}
20 = BagnonContainerItem16 {
}
21 = BagnonContainerItem17 {
}
22 = BagnonContainerItem18 {
}
23 = BagnonContainerItem19 {
}
24 = BagnonContainerItem20 {
}
25 = BagnonContainerItem21 {
}
26 = BagnonContainerItem22 {
}
27 = BagnonContainerItem23 {
}
28 = BagnonContainerItem24 {
}
29 = BagnonContainerItem25 {
}
30 = BagnonContainerItem26 {
}
31 = BagnonContainerItem27 {
}
32 = BagnonContainerItem28 {
}
33 = BagnonContainerItem53 {
}
34 = BagnonContainerItem54 {
}
}
(for control) = 1
i = 1
button = BagnonContainerItem55 {
0 =
OnLeave = defined @BagBrother/core/classes/item.lua:126
__super = {
}
UnregisterAll = defined @BagBrother/core/classes/base.lua:27
IconOverlay = Texture {
}
UpdateCooldown = defined @BagBrother/frames/containers/item.lua:86
Bind = defined @BagBrother/core/classes/item.lua:91
IconBorder = Texture {
}
flashAnim = AnimationGroup {
}
icon = BagnonContainerItem55IconTexture {
}
Backgrounds = {
}
UpdateTooltip = defined @BagBrother/frames/containers/item.lua:57
ExtendedOverlay = Texture {
}
__type = "Button"
__count = 55
GetFrameID = defined @BagBrother/core/classes/parented.lua:35
NewItemTexture = Texture {
}
Delay = defined @BagBrother/libs/MutexDelay-1.0/MutexDelay-1.0.lua:27
SplitStack = defined @FrameXML/ContainerFrame_Shared.lua:1059
BagStaticBottom = Texture {
}
UpdateLocked = defined @BagBrother/core/classes/item.lua:182
UnregisterMessage = defined @BagBrother/libs/CallbackHandler-1.0/CallbackHandler-1.0.lua:153
Update = defined @BagBrother/frames/containers/item.lua:70
flash = Texture {
}
Dummy = Button {
}
RegisterFrameSignal = defined @BagBrother/core/classes/base.lua:15
SetDesaturated = defined @BagBrother/core/classes/item.lua:187
UpdateSearch = defined @BagBrother/core/classes/item.lua:215
hasItem = true
readable = false
UnregisterSignal = defined @BagBrother/libs/WildAddon-1.0/WildAddon-1.0.lua:78
count = 1
info = {
}
GetProfile = defined @BagBrother/core/classes/parented.lua:19
UpdateNewItemAnimation = defined @BagBrother/core/classes/item.lua:227
GetQuery = defined @BagBrother/frames/containers/item.lua:122
frame = BagnonInventory1 {
}
UnregisterAllEvents = defined =[C]:-1
UnregisterEvent = defined =[C]:-1
Count = BagnonContainerItem55Count {
}
IconGlow = Texture {
}
OnPreClick = defined @BagBrother/frames/containers/item.lua:20
searchOverlay = BagnonContainerItem55SearchOverlay {
}
Construct = defined @BagBrother/frames/containers/item.lua:14
BagFamilies = {
}
SendSignal = defined @BagBrother/libs/WildAddon-1.0/WildAddon-1.0.lua:82
ba
Additional context
Add any other context about the problem here.

It has been broken for some time.
As a workaround, edit BagBrother\core\classes\itemGroup.lua and change two occurrences of "self.Flash" to "button.flashAnim". It should be around line 71 and 73.

rowaasr13/BagBrother@f51c13a#diff-0a89f16a2962951fdcb3bfcaf42e16861a0677d60bf8dbd72d1ffad68ffdd36a