That was lovely of you to go to the trouble of creating the video, thank you 🙂
I wonder if it’s because you were logging in as that Vendor for the first time, whereas I have logged in prior to adding the redirect plugin as Karens Crafts and all my Vendors have also logged into their own vendor accounts previously.
I’m guessing even though we have cleared our cache something somewhere isn’t clearing for existing uses who have already logged in…. hmmm
So to test this theory I created a new Vendor account. Then I logged in for the first time using these details and hey presto it took me to the Vendor Dashboard!
So it must be cookies not just cache we need to clear. So I removed my cookies, then signed in with Karens Crafts and ta dar it works! 🙂