What steps will reproduce the problem?
1. It seems to happen whenever I enter a bg/raid/instance or whenever i switch zones via Hearthstone or portals.
2. I hear the 'Fatality' sound and it almost always produces something roughly the same as I posted below.
3. It could very well be an error outside of bugsack, but I just post it here for certainty.

What is the expected output? What do you see instead?

What version of the product are you using?
I update all my addons through the Curse Client before I enter WoW, so I use the most recent versions.

Do you have an error log of what happened?

96x integer overflow attempting to store 2163306114
[C]: in function `format'
FrameXML\RaidFrame.lua:181 in function `RaidInfoFrame_Update'
FrameXML\RaidFrame.lua:84 in function `RaidFrame_OnEvent'
Blizzard_RaidUI\Blizzard_RaidUI.lua:167 in function <Blizzard_RaidUI\Blizzard_RaidUI.lua:166

Locals:
scrollToSelected = true
scrollFrame = RaidInfoScrollFrame {
 0 = <userdata>
 buttons = <table> {
 }
 scrollChild = RaidInfoScrollFrameScrollChild {
 }
 scrollUp = RaidInfoScrollFrameScrollBarScrollUpButton {
 }
 scrollDown = RaidInfoScrollFrameScrollBarScrollDownButton {
 }
 scrollBar = RaidInfoScrollFrameScrollBar {
 }
 offset = 0
 buttonHeight = 30
 update = <function> defined @FrameXML\RaidFrame.lua:143
}
savedInstances = 10
savedWorldBosses = 0
instanceName = "Shadowmoon Burial Grounds"
instanceID = 2163306114
instanceReset = 0
instanceDifficulty = 2
locked = false
extended = false
instanceIDMostSig = 524550144
isRaid = false
maxPlayers = 5
difficultyName = "Heroic"
frameName = nil
frameNameText = nil
frameID = nil
frameReset = nil
width = nil
offset = 0
buttons = <table> {
 1 = RaidInfoScrollFrameButton1 {
 }
 2 = RaidInfoScrollFrameButton2 {
 }
 3 = RaidInfoScrollFrameButton3 {
 }
 4 = RaidInfoScrollFrameButton4 {
 }
 5 = RaidInfoScrollFrameButton5 {
 }
 6 = RaidInfoScrollFrameButton6 {
 }
 7 = RaidInfoScrollFrameButton7 {
 }
}
numButtons = 7
buttonHeight = 30
mouseIsOverScrollFrame = false
(for index) = 4
(for limit) = 7
(for step) = 1
i = 4
frame = RaidInfoScrollFrameButton4 {
 difficulty = RaidInfoScrollFrameButton4Difficulty {
 }
 name = RaidInfoScrollFrameButton4Name {
 }
 instanceID = 2163306114
 extended = RaidInfoScrollFrameButton4Extended {
 }
 0 = <userdata>
 reset = RaidInfoScrollFrameButton4Reset {
 }
}
index = 4

Please provide any additional information below.