There is a reoccurring glitch in bedrock where mobs will be invisible to some players and visible to others. This glitch seems to impact all platforms as friends of mine on PS4, Switch, and PC have all had this issue. Mobs will still be active and attack the player, but the player is defenseless as the mobs are invisible to them.
Related issues
Comments


Thank you for your report!
We're actually already tracking this issue at MCPE-71243, so I will resolve and link this ticket as a duplicate.
That ticket has already been resolved as Fixed. The fix will arrive in the next version or is already included in an available version of the game, you can check the Fix Version/s field in that ticket to learn more.
If you haven't already, you might like to make use of the search feature to see if the issue has already been reported.
Quick Links:
📓 Bug Tracker Guidelines – 💬 Community Support – 📧 Mojang Support
📓 Project Summary – ✍️ Feedback and Suggestions – 📖 Game Wiki
Thank you for your report!
We're actually already tracking this issue at MCPE-71243, so I will resolve and link this ticket as a duplicate.
That ticket has already been resolved as Fixed. The fix will arrive in the next version or is already included in an available version of the game, you can check the Fix Version/s field in that ticket to learn more.
If you haven't already, you might like to make use of the search feature to see if the issue has already been reported.
Quick Links:
📓 Bug Tracker Guidelines – 💬 Community Support – 📧 Mojang Support
📓 Project Summary – ✍️ Feedback and Suggestions – 📖 Game Wiki