Issue: Required column does not have an asterisk(*) next to it on the New and Edit forms

Hello,

 I created an Equipment Log list on Sharepoint Online with five  columns:

• Last Name
• First Name
• Start Date
• End Date
• Item (renamed from the default Title. This column is  required.)

I added couple of records. I then modified the table and set these 3 columns to required as well

• Last Name
• First Name
• Start Date

When I then tried to add a New record or update an existing record, those 3 required columns did not have an asterisk(*) next to them on the New/Edit forms and when I clicked the Save button, I did not get the validation error message

              "An entry is required or has an invalid value. Please correct and try again."

for those 3 columns.

I think this is a bug. Has anyone else encountered this?

Thank you.

Burak