Project ID does not accept Uppercase, Underscores and Periods

Eventho it is stated tha is allowed below the textfield it does not accept it. I have not encountered this issue anywhere else.

TL;DR

The user is experiencing an issue where the project ID does not accept uppercase letters, underscores, and periods. They have posted a link to a related Discord conversation and a GitHub issue. The user believes that the issue is due to a backend update not being reflected in the frontend. They ask for someone to create an issue for this problem. The user mentions their version (1.4.3) and states that while the acceptance of uppercase letters, underscores, and periods is mentioned below the textfield, it does not actually work. No solution is provided in the thread.