Emulator

[READ THIS: https://forums.dolphin-emu.org/showthread.php?pid=276132 <<<
Your answers are there!]
[Leave the questions as they are and answer them in the next line]
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Game Name?
Mario Kart Wii (PAL)

Game ID?
RMCP01

What's the problem? Describe what went wrong in few words.
3D objects flickering on and off the screen, fairly constantly. Happens in menus (swirling cup in background) and in races. Only happens with PAL60 is disabled, works fine with PAL60 enabled.

What did you expect to happen instead?
The above phenomena to not happen, and for the models to appear on screen smoothly when PAL60 is disabled.

What steps will reproduce the problem?
[Don't assume we have ever played the game and know any level names. Be as
specific as possible.]

1. Disable "Use PAL60 Mode (EuRGB60)" in Wii configuration tab
2. Load Mario Kart Wii
3. Go past the start screen, and past the "Choose Number of Players" menu
4. Optionally, go into a race, the effect is worse

Dolphin 3.5 and 3.5-367 are old versions of Dolphin that have
known issues and bugs, so don't report issues about them and test the
latest Dolphin version first.
Which versions of Dolphin did you test on?
4.0-5222

Does using an older version of Dolphin solve your issue? If yes, which
versions of Dolphin used to work?
Yes. This doesn't happen in 4.0-4250 (2 months old), but it DOES happen on 4.0-4803 (1 month old) and the latest New-Zelda-HLE branch (4.0-4883-dirty).

What are your PC specifications? (including, but not limited to: Operating
System, CPU and GPU)
OS - Windows 8.1 Pro
CPU - Intel Pentium G3258 (overclocked to 4.2GHz)
GPU - Intel HD Graphics

Is there any other relevant information? (e.g. logs, screenshots,
configuration files)
Sorry, no screenshots for this one. I tried to get a video dump but for some reason Windows decided to make the resulting file absolutely inaccessible to anyone and anything, including any administrative accounts :(