Hi folks,
when I add the Field Grass 014 and 013 from Cosmos library to the Corona scatter, it creates dark rectangles across the image. Please correct this.
Thank you
I figured out the problem. It was caused by adding HDRI with visible to REFLECTION, etc., as well as having CORONA SKY for GI.
Hi there,
Thank you for bringing this to our attention.
Could you please provide the source of the HDRI you were using?
Additionally, screenshots or a sample file will be handy to understand the workflow when reproducing the issue.
Looking forward to hearing from you soon.
Have an amazing day/evening.
Hello,
I used HDRI from the Cosmos library. The file name was Day_006_520b220a\520b220a_Day_006_7k_lin_srgb.exr.
I am unable to provide the file because it is for a commercial project and is quite big.
I’ve attached a screenshot of the lighting and reflection technique I utilized. The HDRI reflection that caused the issue has been deactivated.

Hello @LeSill,
Thank you so much for your reply.
Unfortunately, I haven’t had enough luck reproducing this issue.
Could you please try disabling the “Adaptive light solver” in the Render settings → Performance settings → Basic configuration and see if the issue persists?
A scene project where we can reproduce the issue will be handy.
If you can submit larger files to us for testing purposes, you can open/submit a support ticket (or I can do it on your behalf)
Looking forward to hearing from you soon.
Have an amazing day/evening.