Snapshot is black in DeltaFPS

Environment

Second Life Release 7.1.10.10800445603 (64bit)
Release Notes

You are at 161.0, 75.0, 47.3 in LindenWorld B located at simhost-0b9f572b16c8d392e.agni
SLURL: http://maps.secondlife.com/secondlife/LindenWorld%20B/161/75/47
(global coordinates 237,985.0, 244,299.0, 47.3)
Second Life Server 2024-10-15.11356152186
Release Notes

CPU: AMD Ryzen 9 7945HX3D with Radeon Graphics (2295.64 MHz)
Memory: 64731 MB
OS Version: Microsoft Windows 11 64-bit (Build 22631.4460)
Graphics Card Vendor: NVIDIA Corporation
Graphics Card: NVIDIA GeForce RTX 4090 Laptop GPU/PCIe/SSE2

Windows Graphics Driver Version: 32.0.15.6603
OpenGL Version: 4.6.0 NVIDIA 566.03

Window size: 2560x1334
Font Size Adjustment: 96pt
UI Scaling: 1
Draw distance: 128m
Bandwidth: 3000kbit/s
LOD factor: 1.5
Render quality: 4
Texture memory: 16376MB
Disk cache: Max size 1638.4 MB (2.4% used)

J2C Decoder Version: KDU v7.10.4
Audio Driver Version: OpenAL, version 1.1 ALSOFT 1.23.1 / OpenAL Community / OpenAL Soft: OpenAL Soft
Dullahan: 1.14.0.202408091639
CEF: 118.4.1+g3dd6078+chromium-118.0.5993.54
Chromium: 118.0.5993.54
LibVLC Version: 3.0.21
Voice Server Version: Vivox 4.10.0000.32327.5fc3fe7c.5942f08

Packets Lost: 0/1,102 (0.0%)
November 22 2024 15:39:36

Description

I am unable to take a snapshot in the latest viewer release, DeltaFPS.

The issue appears to also affect creating icons from a snapshot from the outfits floater, when clicking the "Take photo" button.

The snapshot is also black when trying to take a snapshot for an item from the inventory.

Reproduction steps

When I open the snapshot floater, the snapshot preview is black. When I click to save the snapshot to disk, the snapshot image saved appears to have the correct resolution but is solid black.