I'm pretty sure it's supposed to be the other way around. Funeral is right side in front. Everyone in the game also wears it 'right side under the left', and they are not ghosts.
Patched steam version.
Nocvt replied to Tamaki Sakura's topic in Feedback
In Rina's route, chapter 10. After the last H scene, there is an issue where Rina's sprite changes from naked to pajamas and then to naked again.
She gets back her pajamas for literaly 1 sentence. https://imgur.com/a/c9fzeMh