On its way. I have just updated all cores so that’s possible.
Was it working before? Or is this the first time you have tried it?
Try switching the flip viewport vertical option in the Mega Bezel, let me know how it goes
I’ll take a look at what’s going on, and it should be addressed in the next update 
Which ones? The Royale one will be included next update. The 3ds downsample one is already included in the package in the variations folder
I refer to the Standard, in this case !
Hmm, I don’t think I understand the question…
Is the new Guest DrVenon shader already being used in last MegaBezel pack?
Yes indeed 
I’ve got a quick question/request. So, when using the N64 core, I know I’ve got to flip the viewport to make the bezel look right, but the issue I’m having is that the static reflection doesn’t flip with the viewport. Is there a setting that flips the static reflection, and if not is there any way you could add one in the next update?
Hi, I was unaware of this problem, could you post a screenshot so I can see what it looks like?
Not a problem
Here is it upside down on Super Mario 64.
And here is the correct reflection on Chrono Trigger
Ok thanks a bunch! 
I probably fix it so that when we flip the viewport it flips this too automatically.

Mega Bezel is updated to V 0.9.015 2021-06-05
Changes:
- Royale-Clone preset added in Variations folder
- Guest-DrVenom Advanced
- Updated Variables to be the standard naming to support using settings from community presets
- Experimental
- Versions of Nesguy’s latest presets
- Grade
- Updated Variables to be the standard naming to support using settings from community presets
- Now ON by default
- Default Color TEmp changed to 7000 which seems to work well with the default crt phosphor gamut of NTSC-J (6500 made things look purple which were supposed to be blue)
- Adjusted Vignette Ranges
- Set the CRT Phosphor Gamut to 0 so it is not as different from default
- Change X Position range to 1000
- Tube Static Highlight now gets flipped properly
- Fixed Decal Under Frame appearing on top of the screen
Gonna try that Royale-clone preset right now !
So, I tweaked the Royale Clone preset a little, and I absolutely love the look of it
:
By the way @HyperspaceMadness, here is the log of the crash of Flycast with one of your presets, unfortunately it does not seem to provide much info :
[INFO] [CORE]: Using content: G:\Emulation\Dreamcast\ISOS\Crazy Taxi\Crazy Taxi (USA).gdi.
[INFO] [Core]: Content ran for a total of: 00 hours, 00 minutes, 00 seconds.
[INFO] [Core]: Unloading core…
[INFO] [Core]: Unloading core symbols…
[INFO] [Video]: Does not have enough samples for monitor refresh rate estimation. Requires to run for at least 4096 frames.
[INFO] RetroArch 1.9.4 (Git 6772b89)
[INFO] === Build =======================================
[INFO] CPU Model Name: AMD Ryzen 7 5800X 8-Core Processor
[INFO] Capacités: MMX MMXEXT SSE SSE2 SSE3 SSSE3 SSE4 SSE4.2 AES AVX AVX2
[INFO] Built: May 31 2021
[INFO] Version: 1.9.4
[INFO] Git: 6772b89
[INFO] =================================================
[INFO] [Input]: Found input driver: “dinput”.
[INFO] [Core]: Loading dynamic libretro core from: “G:\Emulation\Retroarch\cores\flycast_libretro.dll”
[INFO] [Overrides]: Core-specific overrides found at “G:\Emulation\Retroarch\config\Flycast\Flycast.cfg”.
[INFO] [Overrides]: No content-dir-specific overrides found at “G:\Emulation\Retroarch\config\Flycast\Crazy Taxi.cfg”.
[INFO] [Overrides]: No game-specific overrides found at “G:\Emulation\Retroarch\config\Flycast\Crazy Taxi (USA).cfg”.
[INFO] [Config]: Appending config “G:\Emulation\Retroarch\config\Flycast\Flycast.cfg”.
EDIT : Found something : the shader crashes because I use a higher resolution than my monitor resolution in Flycast (I use a 4K resolution when my monitor is only 1440p, I use this for downscaling). If I limit Flycast’s internal resolution to 1920x1440, your shaders work. 



