Does the issue occur in the editor or during gameplay?
Editor. I've just started this project.
If it's a gameplay issue, please specify which movement system and camera type you're using (free movement vs. grid movement, third-person vs. first-person) or N/A if not applicable:
Not Applicable.
Briefly describe the issue you're experiencing:
The Voxels are flashing. Flickering. It's like they're popping in and out of existence as quickly as possible. Honestly it's a seizure hazard. I don't have a seizure issue, but staring at this long enough might give a person a migraine, too.
Are there any errors in the in-game debug console or external console window?

I'm not sure if the image will show, it pastes as a link... here's what it says... in case it doesn't.
'No editor_settings.cfg value for: section=general, key=show_invite_to_inn_new_icon
No editor_settings.cfg value for: section=voxel_editor, key=last_import_path
WARNING: ImageTexture::load: This method has been deprecated and will be removed in the future
At: scene\resources\texture.cpp:232
WARNING: Image::load: Loaded resource as image file, this will not work on export: 'res://images/item_slot_selected.png'. Instead, import the image file as an Image resource and load it normally as a resource.
At: core\image.cpp:1746
ERROR: ImageLoader::load_image: Error opening file: res://images/item_slot_selected.png
At: core\io\image_loader.cpp:56
No editor_settings.cfg value for: section=voxel_editor, key=camera_positions'
Provide the steps necessary to reproduce the issue:
I have no idea. It just started happening. Not only in this project, but my other one, eventually it started happening there too. I think it's some kind of visual thing I'm unaware of, but I can't find anything anywhere that doesn't say something about the UI scaling and it's already at 1 for me. Everything is too big, my whole interface goes off screen but I can't make it any smaller.
Provide a download link to the bare bones project (strongly recommended if it's an in-game issue, since this helps significantly when attempting to reproduce it; the report will also be given more priority in this case):
I don't have whatever this is. I haven't posted the game anywhere...?
I'm an entirely new beginner. I'm just trying to make Tiles at this point. I'm not sure how to use forums, I think I'm supposed to use the bug reports tag? There's no option to post in a specific section, I don't think, I can't find it.
I tried to make the map and tiles in 32 and 16 sizes but both flash.
I updated my drivers, did a full delete and reinstall, started an entirely new project, and the error is gone but the flashing persists.