Emulator

Game Name?

Luigi's Mansion

Game ID? (right click the game in the game list, Properties, Info tab)

GLMP01

MD5 Hash? (right click the game in the game list, Properties, Verify tab, Verify Integrity button)

ee1ddbe62f96b09b2394772a2900d82f

What's the problem? Describe what went wrong.

In the cutscene where Luigi returns to the villa and Professor E. Gadd sees him off, the hose from Luigi's Poltergust 3000 keeps disappearing (It's flickering). However, this problem cannot be fixed by disabling Dual Core, as it is in the opening cutscene. Even after disabling all other hacks, improvements and cheats, the problem persists.
I also tested this on my wii several times and no such issue appeared at any point.

What steps will reproduce the problem?

Play the Game normally, until the cutscene where Luigi returns to the villa from Professor E. Gadd's Ghost Research Laboratory. Wait for the close-up of Luigi's Poltergust 3000.

Is the issue present in the latest development version? For future reference, please also write down the version number of the latest development version.

Yes, 5.0-14095.

Is the issue present in the latest stable version?

Not tested, but most likely, yes.

If your issue is a graphical issue, please attach screenshots and record a three frame fifolog of the issue if possible. Screenshots showing what it is supposed to look like from either console or older builds of Dolphin will help too. For more information on how to use the fifoplayer, please check here: https://wiki.dolphin-emu.org/index.php?title=FifoPlayer

Screenshot is added.
I can record a fifolog if desired.

What are your PC specifications? (CPU, GPU, Operating System, more)

Intel Core i7-8700K
Nvidia GeForce GTX 1650 SUPER
Windows 10 x64
16 GB DDR4