Unable to save report due to Add button not enable

[badf007]

Bug description

While filling in all the required information there is still an error in the Notification method section where it shows that a recipient is missing even when valid emails are provided.

How to reproduce the bug

1. Go to alerts and reports.
2. Go to the report section
3. Click Add report
4. Fill all required fields.

What should happen:

• The ADD button is enabled and the report can be saved

What is happening:

• The ADD button is not enabled and a red asterisk is shown in the EMAIL RECIPIENTS field.

Screenshots/recordings

Superset version

master / latest-dev

Python version

3.9

Node version

16

Browser

Chrome

Additional context

No response

Checklist

• I have searched Superset docs and Slack and didn't find a solution to my problem.
• I have searched the GitHub issue tracker and didn't find a similar bug report.
• I have checked Superset's logs for errors and if I found a relevant Python stacktrace, I included it here as text in the "additional context" section.

[cmartinezdnn]

Same issue happening to me. It looks like there is bug in new superset 4.0 version.

[sfirke]

Someone in Slack is seeing this too. I am running 4.0.0 in production and can successfully create a new alert, so this is not universally broken. My best guess is that there's something in the recipients validation checker that succeeds on my instance but fails for these people without telling them why. CC @fisjac as I believe they wrote some of this new validation.

[alexkyurtev]

please contact me if further information is needed , i`m also seeing this bug on my side

[fisjac]

Looking into this.