As I understand, you have deleted the your old static webapp and now trying to bind the domain to the new static webapp.
If you haven't done this already, on your domain registrar, ensure the previous records are updated/cleared ( that of old static webapp).
Also, as noted the DNS propagation can take up to 12 hrs.
From Dig interface, I see this record.
-Once the TXT record value is generated, select the copy button (next to the generated value) to copy the code to the clipboard.
Select the Close button.
Open a new browser tab and sign in to your domain registrar account.
Navigate to your domain name's DNS configuration settings.
Add a new TXT record | with the values.
Checkout the doc: Set up an apex domain in Azure Static Web Apps
I have tried a similar repro and updated/generated the TXT record.
Kindly let us know how it goes, I'll follow-up with you further.