I created a new entity using the experimental gameplay. It is supposed to be a hostile mob, so I made "monster" as one of it's families in the behavior json and in the spawn rules I set the population control to "monster." When I switch the difficulty to Peaceful, I expected the custom monster to disappear. It remained in game instead. It did not attack me when I switched to survival mode.
Cleaning up old tickets: This ticket has not been updated recently so is being closed as Cannot Reproduce. If you feel this is still a valid issue then please comment, or create a new ticket following the Issue Guidelines.
Also, we'd recommend making use of the search feature before writing a new bug report, as it's very likely that the issue has been mentioned already, and you can add a vote and any new information to the main ticket.
For any queries with your account or billing, you will need to contact Mojang Customer Support directly.
For feature requests or feedback, please head over to the Minecraft Feedback Site where you can search and vote for existing topics, or add a new thread if necessary.
Quick Links:
📓 Issue Guidelines – 💬 Mojang Support – 📧 Suggestions – 📖 Minecraft Wiki