Hi Brad,
Thanks for reaching out to us! I would be happy to help you 🙂
Did you try to deactivate other plugins (except for The Events Calendar and Event Tickets/Plus), to see if you still had the same problem?
Try also to switch to a default theme, and see if that changes something when you visit your Event Menu.
If there’s no conflict, your issue might be related to your hosting environment. If you could ask your hosting company to increase the following values, it might help:
memory_limit
upload_max_size
post_max_size
upload_max_filesize
max_execution_time
max_input_time
Preferably to the following values:
memory_limit = 256M
upload_max_size = 64M
post_max_size = 64M
upload_max_filesize = 64M
max_execution_time = 300
max_input_time = 1000
Please do let me know how it goes.
Cheers,
Jeremy