Black drop shadow on player models and mobs

[WrightBruh]

Running shader v1.5.0.1 via Iris on MC v1.9.3

EDIT: Forgot to mention I'm also running the Fabulously Optimized modpack v4.6.1, in case that has any problematic mods.

Noticed that drop shadows on my player model and mobs were totally black and not transparent as they usually are.

I fiddled with some settings to see what could be causing the issue, and found that toggling the Lightmap setting from Default to Simple fixed the shadows, but now I don't have colored lighting. Any idea on how to fix this, or is this needing a patch?

[DrDesten]

I'll take a look. Thanks for reporting the issue

[DrDesten]

Does it happen with colored lights disabled but the default lightmap enabled?

[WrightBruh]

Just gave that a try, but it didn't make a difference with the drop shadows.

[DrDesten]

Thanks, that does narrow it down a bit. I'll get back to you when I know more.

[WrightBruh]

Sounds good! Thanks for the quick replies 😊

[DrDesten]

I have identified the issue.
I just don't know how to fix it (yet).