Odd Cursor Glitch When Moving Through Windows and Game

[CheeseSprinkles]

Version of OpenTTD

1.10.0, Linux Debian

Expected result

The cursor should behave normally in-game.

Actual result

The cursor bugs out in-game, lags significantly and creates clones of itself while moving around.

Steps to reproduce

Open any save or start a new game; move the cursor aorund.

[nielsmh]

Which video driver? SDL 1, SDL 2, or (unlikely) Allegro?

[CheeseSprinkles]

Which video driver? SDL 1, SDL 2, or (unlikely) Allegro?

SDL1, I think.

[CheeseSprinkles]

Playing in 1.10.1 now; problem still persists. Also, a savegame with the issue (which i forgot to attach originally)
test, Jan 1st, 2010.zip

[James103]

On Windows 10 Home 10.0.18363 Build 18363, moving the cursor a lot can cause the cursor to disappear (and/or be cut off) for a bit. Unfortunately, I was unable to capture that in a screenshot, but it happens in practice. It is better reproduced with an empty map.
openttd.cfg.zip

Configuration:
 Blitter:      32bpp-optimized
 Graphics set: OpenGFX (7393)
 Language:     C:\Program Files\OpenTTD\lang\english.lng
 Music driver: dmusic
 Music set:    Barry Taylor's Traditional American Tunebook Volume 2 (1)
 Network:      no
 Sound driver: xaudio2
 Sound set:    OpenSFX (87)
 Video driver: win32

[TrueBrain]

@James103 : upcoming nightly (that of 20210223) will have that fixed (see #8726).

@CheeseSprinkles : we did a lot of improvements on rendering in general, but I have never seen this issue in all the testing I did. Now there is a chance this is fixed in our latest nightly (https://www.openttd.org/downloads/openttd-nightlies/latest.html ). Would you mind giving that a spin to see if the problem is resolved?

Tnx!