Unsupported GraphicsSchedulerSelect?

Hi everyone! I recently turned my Inspiron 5577 into a Hackintosh on Mojave 10.14.5 with everything working (at least everything that matters to me) and I decided to go all in and try out Catalina (I know, it's a risk, but I like to live on the edge). Everything went smoothly in the installer (full graphics acceleration, too), but after the installation, on first boot, things went awry.

Everything is fine until macOS tries to initialize the GPU. Cue the panic with the very confusing message: panic(cpu 4 caller 0xffffff7f9e58e005): "Unsupported GraphicsSchedulerSelect=2\n"@skl/IntelAccelerator.cpp:2067

I've tried searching this online (since it seems like a very specific error) but the only suggestions are to use WhateverGreen 1.3.0. However, the latest released version on GitHub is 1.2.9 (does this mean I have to compile it myself?). I've updated all my kexts (Lilu, WhateverGreen, etc.) to the latest prebuilt versions (again, not sure if I should try compiling the latest code on master).

Thanks in advance for any help you can provide.

Here are my specs:\ Laptop Model = Dell Inspiron 15 5577\ Motherboard = OEM Motherboard (TF0TH)\ CPU = i7 7700HQ (Kaby Lake)\ GPU = Intel HD 630 (plus a disabled GeForce GTX 1050)\ Install method = USB with Clover\ macOS Version = macOS 10.15 Catalina Developer Preview 1\ Clover EFI