Hi Joanna,
Thanks so much for reaching out again!
I’m sorry to hear that you are still experiencing this issue! I apologize if you have already gone through this in your settings, but if you go to Events Settings < General, do you have Recurring event instances unchecked? If not, please uncheck and Save Changes.
Also, we have just released a maintenance release of The Events Calendar yesterday, so please update and let us know if the issue continues.
Can you confirm if you have gone through our testing for conflicts procedure? If not, that would be a good place for you to start.
Let me know how it goes!
Thanks,
Jaime