Overlay Does not work on the top half of the screen when using parallax.

[Mothlematic]

As Described, rather just vanishes or acts really strange.

[RichardULZ]

Sadly not fixable, and not a bug.
The window layer is stuck to the bottom right corner of screen as part of the hardware limitations.

Parallax slices require a scanline interrupts to set the backgrounds scroll position as the screen is drawn
Overlay Top requires a scanline interrupt, to count how many lines before it should disable the window/overlay.
Dialogue at bottom also uses a scanline interrupt to hide actors below a certain line, if the overlay window is full width.

Unfortunately, we can only have one scanline interrupt at a time, and it must be fast enough to check 160 times a frame, so you can only use one of the 3 at any one time.

You will have to design around that,
perhaps draw text to the background?
or disable the borders and use text commands for a smaller text window at the bottom.

If you believe i have misunderstood the issue, try following the issue template and attach screenshots, otherwise please close the issue.