SharePoint List Calendar View Conditional Formatting Not Displaying for Everyone

Good afternoon,

I have an odd issue I'm struggling with. I've implemented some JSON code that changes the color of a Sharepoint calendar view event based on the event type. Most people see the color coding, however some people see all event types as one color (red). At first I thought it had to do with the level of MS access each user had (the first to flag it was an outside consultant), but a few others also experience this issue and their access levels range from Associate through Director.

Has anyone else experienced this issue and know how to fix it?

Thank you.