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01:24 pm, 28 Jan 05

find the bug, 2

Here’s the answer to find the bug.

Unfortunately, giving you the full context pretty much gives the answer away, but this sorta functions as a hint:
The UI library supported Japanese.

And if you still don’t have it:
Multi-byte characters were getting snipped mid-character. The basic red flag is that you’re passing COLS (presumably columns, a character offset) to substr, a function that takes a byte offset.