Thank you to those who have contributed to the expansion of this guide:

-TerrariaMods
-An0therRand0mC0der

Current glitches (glitches that are currently popping up all over Scratch:

None currently known.

!Major issues! They can ruin projects:

Gray box and question mark glitch:
This glitch can make one lose several hours of work. If you see this happen in one of your projects, close the tab without saving. It's better to lose 15 minutes of work than 2 hours. Then check your project is still infected with gray question mark boxes. If it is, wait a day or two before re-entering your project. You will have to redo what was lost.

Common issues:

Project not saving:

This happens very often. There are a few reasons why a project may not save. This section offers solutions to potential problems.

Project.JSON file size is too big

Sound sizes - cut down the the sound lengths

Amount of costumes - you may have to delete some costumes

Bad connection - try to improve your connection and try again later

Not logged into account - log into your account and try again

Save failure - try a couple more times

Thing won't backpack:

Either the thing you are trying to backpack is too big (cut down the size of it before backpacking it), or you have too much in your backpack (delete what you don't use).

It could just be a backpack fail, so try a few times before trying either solution.

Can't change the volume of a sound:

Cut down the length of the sound, then try again.

Thumbnail not saving:

This one is very annoying, and happens frequently.

The only known fix as of now is to copy the project and share the copy, but you will lose all views, loves, and favorites.

Cropped costume glitch:

This glitch is also rather frustrating to deal with, and it seems to be a cropping glitch. Scratch crops vector images based off of their sizes to put them on the screen, and sometimes the width or height is underestimated, which causes this glitch. This does not happen with bitmap because Scratch uses the amount and sizes of pixels to determine how it should be cropped.

The fixes for this glitch are simple.

You can either:

-Convert your costume to bitmap (doing so makes the image pixelated, and is only undoable with the undo button)

-Create a small or invisible dot so that Scratch includes it for the cropping size (may interfere with the hitbox of the sprite)

Simply using the undo and redo buttons will not work as it simply redoes the exact cropping Scratch already did.

Coding errors:

Key doesn't work after a bit:

If you are working with clones, you likely exceeded Scratch's clone limit. Try using this block at the end of the script for clones:

 delete this clone 

TerrariaMods wrote:

You missed the glitch where thumbnails don't save. Currently the only workaround is to make a duplicate and share it, loosing all s, s, comments, remixes, and views.

An0therRand0mC0der wrote:

-snip-

Also, add the glitch where cloud variables won't save lol

An0therRand0mC0der wrote:

Also add this:
Cut-off circles in vector paint editor
Reason: Scratch crops off parts and it's kind of bugged
Workaround: Put an very small, or rather invisible, dot next to the circle. It will move the cropped area.

EatNYeet wrote:

An0therRand0mC0der wrote:

Also, add the glitch where cloud variables won't save lol

I'm not familiar with that one.

Are there any fixes for it?
-snip-

TerrariaMods wrote:

You missed the glitch where thumbnails don't save. Currently the only workaround is to make a duplicate and share it, loosing all s, s, comments, remixes, and views.

EatNYeet wrote:

Gray box and question mark glitch:
This glitch can make one lose several hours of work. If you see this happen in one of your projects, close the tab without saving. It's better to lose 15 minutes of work than 2 hours. Then check your project is still infected with gray question mark boxes. If it is, wait a day or two before re-entering your project. You will have to redo what was lost.

VedanshS933 wrote:

Which one is true?