Custom Blocks Containing "<" Cause Errors

[the-can-of-soup]

Expected Behavior

A custom block is created and behaves as normal.

Actual Behavior

The custom block is created, but whenever it is run from being called or manually run from the user clicking the block stack, the code doesn't actually run and it gives the error
[sprite name]: TypeError: Cannot read properties of undefined (reading 'proccode')
where [sprite name] is the name of the sprite.

This does not occur for the symbol ">" or for any other symbols as far as I know.

Steps to Reproduce

1. Create a new project.
2. Create a new custom block and name it anything that includes "<".
3. Run the custom block.

Operating System and Browser

Tested on Windows 10 + Firefox and also ChromeOS + Chrome.

[RedMan13]

the hell bruh