Vortex - Cannot install mods: Error - cb is not a function

[Nagev]

One of those extension updates must've been corrupted in some way, or potentially there's unexpected data within the %appdata%/vortex/plugins folder.

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I just updated to 1.13.7 and still the same issue.

Which version were you using previously? updating from a much older version of Vortex with potentially corrupt state data may have also been the cause.

I'd expect this to be a lot more wide spread if it were the extensions themselves.