bumping/chiming in here as i have a new client who uses this all-in-one event calendar plugin (apparently still available in the wordpress repository and still being updated)
https://wordpress.org/plugins/all-in-one-event-calendar/
activating bulletproof pro while the all-in-one plugin is also activated seems to crash the site. upon adding the custom code (referenced in this thread above) to the CUSTOM CODE PLUGIN/THEME SKIP/BYPASS RULES section – it doesn’t seem to have any affect. is there an updated fix for this? no worries if not – i see a lot of negative reviews for the all-in-one plugin so I assume it’s probably an issue with them and not BPS 😉