Supported characters in process names

A process flow does not render in IPD Web when a process name contains a space or specific special characters. However, it opens successfully in the old Process Designer. This table shows the characters that are supported and not supported in process names in both the old and new Process Designer:
Character name Symbol Renders in old Process Designer Renders in new Process Designer
Ampersand & No No
Apostrophe or single quotation mark ' Yes No
At symbol @ Yes Yes
Caret ^ Yes No
Curly brackets { } Yes No
Dollar sign $ Yes Yes
Equal = No No
Exclamation mark ! Yes Yes
Hash # Yes No
Hyphen or minus sign - Yes Yes
Parentheses ( ) No No
Percent % No No
Plus + Yes No
Space Yes No
Square brackets [ ] Yes Yes
Tilde ~ Yes Yes
Underscore _ Yes Yes