Number rendering error in Map

[Hatkeshiator]

Describe the bug
In Map (the Four Color Map puzzle), a specific puzzle renders a single number (when region numbers are enabled) incorrectly. Instead of rendering the number '20' in black font, the top half of the 0 of the '20' is rendered in gray, like the borders of regions are.

To Reproduce
Steps to reproduce the behavior:

1. Open the puzzle "Map", specifically with the .sgtp attached here.
2. Enable region numbering, if not already enabled.
3. Observe region number '20', whose number is rendered incorrectly.

Expected behavior
The font for rendering region numbers is typically black, yet here, part of the number is rendered gray. The color and thickness of the error area indicate that a region border incorrectly being rendered (where one does not in fact exist)

Screenshots
(screenshot)

(screenshot)

(I WOULD attach the sgtp files here, but github mobile won't let me.)

Version info (optional, but sometimes helpful)

• Phone/tablet model: Oppo A15
• Android version: Android 10, ColorOS 7.2
• App version: Version 2024-03-29-2245-fd304c53

Additional context
The problem fixes itself after you fill the last region next to region number 20 (region 14), even if you use the incorrect color.

[Hatkeshiator]

Just noticed as well: in the incomplete puzzle, region 17 also suffers a rendering error, though this was fixed by the time I reached the last step (probably when I filled the region). It's wierd that there are two of them here. I'd yet to encounter any until today.

[Hatkeshiator]

Yet another puzzle suffers yet more glaring rendering errors...