Pretty much an FYI because I’ve never gotten a Blizzard Response to a technical support inquiry…
However, currently the Discord Overlay can cause a fatal error in World of Warcraft. The workaround is to turn this overlay off in Discord.
This is from the crash.txt that WoW creates when it dies on startup -
<Exception.HashBlock:> DBG-OPTIONS<NoImage NoAddress NoFileLine NoFuncOffset NoDbgAddr> ERROR #132 DBG-ADDR<00007ffc10b2a9b1>("DiscordHook64.dll") DBG-ADDR<00007ffc10b3ce78>("DiscordHook64.dll") DBG-ADDR<00007ffc10b3cdfe>("DiscordHook64.dll") DBG-ADDR<00007ffc10bf9418>("DiscordHook64.dll") DBG-ADDR<00007ffc10c03332>("DiscordHook64.dll") DBG-ADDR<00007ffc10bb88c9>("DiscordHook64.dll") DBG-OPTIONS<> <:Exception.HashBlock>
Will keep the entire file and can email it if someone actually wants to look at it. Though, I have been submitting the in-game crash reports on this for weeks and no one has contacted me.