None of these "null" events are displayed or shown on my PC in the Thunderbird/Lightning event calendar.
After sync'ing, they show up on my phone as a daily reoccurring event with no title, no attendees, nothing, except being an event on my phone's calendar at 5:30pm each day, for every single day (Sunday to Saturday), for like every day possible (out to infinity?).
After sync'ing, it shows up in BirdieSync's history as:

How do I get rid of this? I assume I need to delete it off my "work" folder on my PC, but since it is not displayed by Thunderbird/Lightning, I have no idea how to even start to do that.