AutoID sometimes doesn't assign ID number

I’m currently using the app AutoID to automatically assign board items which are introduced via a form. The format automatically creates a number with the format (NCMR)-<increasing number starting with 001>.

The form entry method works great, but every now and then an item is created with the name “Incoming form answer” and then the following entry continues as normal. I’ve seen this on several different form-driven entries.

Is this a glitch, it is because of how the form is entered, etc.?

Calling in @basdebruin !!