BUG:
The player's character is immune to potion damage for a few seconds after loading any savefile on either Survival or Hardcore modes. Please note, that the issue occurs only for the player's character - if, for example, the character is riding a horse, then after performing Save/Load the horse will still take damage. Please refer to the video. Unfortunately the video was too big to attach to the report.

STEPS TO REPRODUCE:

1. Launch the title in version 1.16.2 on the PC platform
2. Either load an already existing savefile or create a new one on Survival or Hardcore mode
3. Wait until the night time in-game
4. Find the Witch enemy
5. Make sure that the enemy notices the player's character
6. Select Save and Quit to Title
7. Load the savefile
8. Have the Witch throw a potion at the player's character
9. Pay attention to the damage taken by the player