I think I might be having a similar issue, my identity-signup function isn’t updating app_metadata anymore but it had been working flawlessly for years.
I’ve been using Netlify Identity for several years now with no issues with the identity-signup function. Sometime in the past two days, I noticed that my identity-signup function is no longer updating the users app_metadata field.
The function executes without failing, but it does not update the users app_metadata.
This issue seems very similar to what @Shadowmap is experiencing here: Identity-signup seems to run successfully, but roles aren't set afterwards
Netlify Site Name: syncmyworkout