Conditions:
A form with a field marked as required. In my example I have a Number field.
A separate File Upload Field which is also set to required
Bug Replication:
1 - Fill the Number field intentionally incorrect, for example enter 5.5
2 - Add a file in the file upload field.
3 - Click Submit
The Number field gets rejected and marked red for you to change.
4 - Change the number to 5
5 - Try re-submitting the form
6 - I get a JS error "An invalid form control is not focusable." and form doesn't submit even though the error had been corrected.
Environment
Xperience by Kentico version: 30.2.2
.NET version: 9
Execution environment: Azure