My Game Does Not Look Visually Correct Once Packaged, Leaving my Finished Game Unusable

Though I doubt anyone will see this, this is honestly a really unfortunate issue I’m experiencing, that not even any of the professors at my university could find a solution to despite all of our efforts. For my final, I spent six weeks developing a game project that I expected to be a significant portfolio piece to use in future endeavors. Unfortunately, the visual issues that appear when UE5 packages renders this project useless. I should also add this is my first time using UE5, so here’d my obligatory apology for being highly inexperienced.

Notes:
I spent a month away from this project, thinking it was useless, but if there is even a sliver of hope I can have this remain as a playable piece of media, I’d like to find that solution. Nonetheless, I might be a bit rusty on a few things.

  • The only plugin I am using off the top of my head is PaperZD
  • I only used blueprint for the entirety of the project
  • This is my first time using the UE forums, sorry if I make any errors
  • Though the screenshots are mostly taken in the editor, they appear visually the same when I play the game in the editor

Links
This is a link to the packaged project and UE5 project. I have disabled dying as to make it easier to test. You will still need to solve the puzzles sadly.

What is The Actual Problem?
The backgrounds within my 2D game are not visually correct, to the extent that backgrounds that should not appear do on levels where there is no place it should be added, below I will show visual examples.

Level 1 Visual Issues:
Level Titled in Files “TutorialLevel”



Level 2 Visual Issues:
Level Titled in Files “dungeon2”



Level 3 Visual Issues:
Level Titled in Files “DungeonLevel2Fix”



^This one is particularly weird because the sprite I’m standing behind seems to be significantly further away than the other ones

Level 4 Visual Issues:
Level Titled in Files “TopLevel1”




The visual bugs after this point become a significant problem because the statue sprite is not even present in the game on the remaining maps

Level 5 Visual Issues:
Level Titled in Files “PreBossFloor”


Level 5.5 Visual Issues:
Level Titled in Files “BossCutsceneFixed”


Level 6 Visual Issues:
Level Titled in Files “BossFloor”




I truly hope anyone can help me find a solution for this, because as it stands this project was essentially for nothing. I will try to stay active, though I assume this will be buried.