Calendar Widget Not Showing Synced Calendar Events

I've been setting up BTT in the last two days with my Macbook Pro 16", and have noticed an issue where the calendar widget will not show any events that aren't a part of my "main" calendar, I.E. synced iCal subscriptions. I'm using Aquatouch, but the issue was persistent before I installed the presets. I found an old help thread that instructed to install iCal Buddy, which I've done, but the issue remains. Any advice would be appreciated.