Why are my Paper2D sprites low resolution when I first open the editor?

I have a project that was created from the Paper2D Platformer Blueprint template. I have loaded in the sprites from the YouTube Paper2D tutorial series and followed all of the instructions in that series, such as converting the sprites to the Paper2D settings, etc.

When I run the editor, all of the placed sprites in the level are extremely low resolution. Once I view inside the folder that contains all of the sprite assets, they all appear to refresh. The in-level sprites then display at their correct resolution.

NOTE: In the game, I have a portal asset that transfers the player to another level. That level is always low resolution, just as the initial level was upon the editor starting. Also, upon exiting the game, the sprites in the initial level are now low resolution again until I “reload” them by viewing their asset folder’s contents.

Thank you in advance,
Andrew “failrate” Baker