If “\b” is found anywhere in a project (except for the name of the project), then Scratch cannot save or load the project.
It will only not save if you use a backslash and a lowercase b.
This glitch works in both the online and offline editor.

Try it for yourself. Create a new project, put \b inside the code, and you will not be able to save the project.

Example

This problem is in Scratch 3, but not in Scratch 2

I made a lot of progress on a project, but then since it wouldn't save, I downloaded it. I didn't know about this glitch beforehand, and now I can't load it back into Scratch because one of the items in a list contains \b.

(deleted because it was moved)

I don't think you can have / or \ in your project name

cs928293 wrote:

I don't think you can have / or \ in your project name

You are able to have them in the project name. https://scratch-mit-edu.ezproxyberklee.flo.org/projects/484475531/

Bump

yep, i tried it myself and it couldnt save

when green flag clicked
\b
define \b

and it wasn't able to save

it's because Scratch can't identify those symbols

What do you mean?

The project doesn't load on TurboWarp either.

Can reproduce

I just did some more testing on this bug, and it also affects projects where any names of sounds, costumes, variables, lists, sprites, or backgrounds contain \b

I went into the console, and when I tried to save a project with \b, it came up with two errors which you can find here: https://turbowarp.org/485867178

I searched up \b and it apparently means backspace. Could also mean word boundary in regex, but it's probably just backspace.

Can replicate.
If this gets fixed, maybe we'll have a brand new backspace detection. :]

I went into the console and found out that https://mv-ezproxy-com.ezproxyberklee.flo.org/484521347 gave a 500 error when trying to put the project there

Bump

This is a really unfixable issue, because in Javascript, using a \ followed by a symbol indicates an escape code, for example “\n” means new line. This is probably just a random escape code that Javascript doesn't like, therefore Scratch doesn't wanna save.

Hope this helps!

EDIT:

The code “\b” is a RegExp code for “find sequence in a string.”
Read more about it here: https://www.w3schools.com/jsref/jsref_regexp_begin.asp

I've listed it as a common issue in my directory:

My project won't save/load
This can be caused by:
·Slow internet connection - download it
·A large file exceeding the file limit (10MB) - Delete or compress the file
·Switching accounts in a seperate tab - Open a new tab and switch back
·Having “\b” anywhere in your project, as it messes up the JavaScript engine.

Herbin12 wrote:

This is a really unfixable issue, because in Javascript, using a \ followed by a symbol indicates an escape code, for example “\n” means new line. This is probably just a random escape code that Javascript doesn't like, therefore Scratch doesn't wanna save.

Hope this helps!

EDIT:

The code “\b” is a RegExp code for “find sequence in a string.”
Read more about it here: https://www.w3schools.com/jsref/jsref_regexp_begin.asp

Thank you