Error since 8.2 when changing specs
 

I have been getting the following when logging in or trying to change specs. It has occurred with both 2.0.12 and 2.0.13

x1 nibRealUI_Config\Advanced.lua:2880: Cannot find a library instance of "LibDualSpec-1.0".
Stack: [C] in function 'error'
...nterface\RealUI_Bugs\Libs\LibStub\LibStub.lua:23: in function 'LibStub'
nibRealUI_Config\Advanced.lua:2880: in main chunk
[C] in function 'LoadAddOn'
nibRealUI\Core.lua:364: in function 'LoadConfig'
nibRealUI\Infobar\Blocks.lua:535: in function <nibRealUI\Infobar\Blocks.lua:535>
[C] in function 'pcall'
...ce\nibRealUI\Libs\LibDropDown-2\mixins/Line.lua:78: in function <...ce\nibRealUI\Libs\LibDropDown\mixins/Line.lua:56>
Time: 2019/07/03 19:01:10 Index: 3/5
RealUI Version: 2.0.13
Locals:
(*temporary) = "Cannot find a library instance of "LibDualSpec-1.0"."

Also been getting this one, even after deleting all addons then moving them over from latest release:

x17 nibRealUI\Infobar\Blocks.lua:2020: attempt to call method 'GetDualSpecProfile' (a nil value)
Stack: nibRealUI\Infobar\Blocks.lua:2020: in function 'OnEnter'
nibRealUI\Infobar\Bar.lua:68: in function <nibRealUI\Infobar\Bar.lua:53>
Time: 2019/07/03 19:15:07 Index: 7/8
RealUI Version: 2.0.13
Locals:
block = <unnamed> {
0 = <userdata>
OnLeave = <function> defined @nibRealUI\Infobar\Bar.lua:82
highlight = <unnamed> {}
RestorePosition = <function> defined @nibRealUI\Infobar\Bar.lua:218
checkWidth = false
OnDragStart = <function> defined @nibRealUI\Infobar\Bar.lua:111
tooltip = <unnamed> {}
UpdateButtonSide = <function> defined @nibRealUI\Infobar\Bar.lua:193
index = 5
isDocked = true
OnUpdate = <function> defined @nibRealUI\Infobar\Bar.lua:159
side = "right"
AdjustElements = <function> defined @nibRealUI\Infobar\Bar.lua:225
OnDragStop = <function> defined @nibRealUI\Infobar\Bar.lua:125
text = <unnamed> {}
label = <unnamed> {}
SavePosition = <function> defined @nibRealUI\Infobar\Bar.lua:211
icon = <unnamed> {}
OnEnter = <function> defined @nibRealUI\Infobar\Bar.lua:53
name = "spec"
bg = <unnamed> {}
OnClick = <function> defined @nibRealUI\Infobar\Bar.lua:102
OnEvent = <function> defined @nibRealUI\Infobar\Bar.lua:148
pulseAnim = <unnamed> {}
dataObj = <table> {}
}
tooltip = <unnamed> {
0 = <userdata>
regularFont = SystemFont_Shadow_Med1 {}
columns = <table> {}
cell_margin_v = 3
scrollChild = <unnamed> {}
colspans = <table> {}
autoHideTimerFrame = <unnamed> {}
width = 12
headerFont = Fancy16Font {}
cell_margin_h = 6
key = <unnamed> {}
scripts = <table> {}
height = 17.999999
labelProvider = <table> {}
lines = <table> {}
scrollFrame = <unnamed> {}
}
lineNum = 1
colNum = 1
(for index) = 1
(for limit) = 3
(for step) = 1
specIndex = 1
equipSet = false
(*temporary) = <function> defined @nibRealUI\Libs\LibQTip-1.0\LibQTip-1.0.lua:1099
(*temporary) = <unnamed> {
0 = <userdata>
regularFont = SystemFont_Shadow_Med1 {}
columns = <table> {}
cell_margin_v = 3
scrollChild = <unnamed> {}
colspans = <table> {}
autoHideTimerFrame = <unnamed> {}
width = 12
headerFont = Fancy16Font {}
cell_margin_h = 6
key = <unnamed> {}
scripts = <table> {}
height = 17.999999
labelProvider = <table> {}
lines = <table> {}
scrollFrame = <unnamed> {}
}
(*temporary) = "Beast Mastery"
(*temporary) = "---"
(*temporary) = nil
(*temporary) = <table> {
SetProfile = <function> defined @Grid2\Libs\AceDB-3.0\AceDB-3.0.lua:430
defaults = <table> {}
callbacks = <table> {}
RegisterDefaults = <function> defined @Grid2\Libs\AceDB-3.0\AceDB-3.0.lua:398
CopyProfile = <function> defined @Grid2\Libs\AceDB-3.0\AceDB-3.0.lua:549
ResetProfile = <function> defined @Grid2\Libs\AceDB-3.0\AceDB-3.0.lua:584
keys = <table> {}
children = <table> {}
UnregisterAllCallbacks = <function> defined @RealUI_Bugs\Libs\CallbackHandler-1.0\CallbackHandler-1.0.lua:174
DeleteProfile = <function> defined @Grid2\Libs\AceDB-3.0\AceDB-3.0.lua:510
global = <table> {}
sv = <table> {}
char = <table> {}
profile = <table> {}
RegisterCallback = <function> defined @RealUI_Bugs\Libs\CallbackHandler-1.0\CallbackHandler-1.0.lua:90
GetNamespace = <function> defined @Grid2\Libs\AceDB-3.0\AceDB-3.0.lua:676
ResetDB = <function> defined @Grid2\Libs\AceDB-3.0\AceDB-3.0.lua:612
UnregisterCallback = <function> defined @RealUI_Bugs\Libs\CallbackHandler-1.0\CallbackHandler-1.0.lua:153
GetProfiles = <function> defined @Grid2\Libs\AceDB-3.0\AceDB-3.0.lua:472
profiles = <table> {}
GetCurrentProfile = <function> defined @Grid2\Libs\AceDB-3.0\AceDB-3.0.lua:503
RegisterNamespace = <function> defined @Grid2\Libs\AceDB-3.0\AceDB-3.0.lua:646
}
(*temporary) = 1
(*temporary) = "attempt to call method 'GetDualSpecProfile' (a nil value)"
qTip = <table> {
activeTooltips = <table> {}
LabelPrototype = <table> {}
tooltipHeap = <table> {}
cellPrototype = <tab