Describe the bug

Logged in today and my weak auras are now throwing an error whenever I try to edit them.

To Reproduce

By opening Weak Auras, in game, this error immediately pops up.

Did you try having WeakAuras as the only enabled addon and everything else (especially something like ElvUI) disabled?
I had only Weak Auras and Details for Shadowlands enabled.

Which version of WeakAuras are you using?
9.0 release

Are you on World of Warcraft Classic or Retail?

• Classic
• Retail
• [X ] Shadowlands

Was it working in a previous version? If yes, which was the last good one?
It was working yesterday.

This is an issue on WoW's client side, it should be fixed in a future PTR release, but we can't do anything about it.