Distant water does not render when using certain colormaps

Issue: when shaders are disabled and when using packs such as Gerudoku Faithful or OG Water Pack, far away water that is loaded by Voxy is not rendered/visible. The only water that can be seen is within vanilla render distance.
My theory may be wrong, but this seems to only be an issue with packs that utilize OptiFine/Polytone's "vanilla" colormap format for water; any pack that uses a "grid" colormap format works fine.
Also, this issue only persists when shaders are disabled; using any shader pack makes the distant water show up.
The screenshots attached are taken with Complementary Reimagined shaders on/off and either Gerudoku Faithful or OG Water Pack as the resource pack.

Minecraft version:
1.21.11

Fabric version:
0.19.3

Relevant mods used:
Sodium [0.8.12+mc1.21.11]
Iris [1.10.7+mc1.21.11]
Voxy [0.2.16-beta]

All mods used:
3d-Skin-Layers [1.11.1]
Advancements Reloaded [0.12.0]
AppleSkin [3.0.8+mc1.21.11]
Architectury [19.0.1]
BadOptimizations [2.4.1]
Better Ping Display [1.2.0]
Better Statistics Screen [5.1.0+fabric-1.21.11]
Blur+ [6.3.0]
Bobby [5.2.11+mc1.21.11]
Capes [1.5.10+1.21.11]
Chat Heads [1.2.4]
ChatAnimation [1.1.3]
Cherished Worlds [15.2.0+1.21.11]
Cloth Config v20 [21.11.153]
Continuity [3.0.1-beta.1+1.21.11]
Dynamic FPS [3.11.6]
Entity Model Features [3.2.4]
Entity Sound Features [0.8.1]
Entity Texture Features [7.1]
Entity View Distance [1.7.1+1.21.11]
EntityCulling [1.10.2]
Euphoria Patcher [1.9.3-r5.8.1-fabric]
Fabric API [0.141.4+1.21.11]
Fabric Language Kotlin [1.13.12+kotlin.2.4.0]
Fabrishot [1.16.4]
Fadeless [2.0.7-1.21.11]
Fast IP Ping [1.0.11]
FerriteCore [8.2.0]
Forge Config API Port [21.11.1]
Fzzy Config [0.7.6+1.21.11]
ImageFrame Client [1.2.0]
ImmediatelyFast [1.14.2+1.21.11]
Iris [1.10.7+mc1.21.11]
Language Reload [1.7.6+1.21.11]
Lithium [0.21.4+mc1.21.11]
Logical Zoom [0.0.34]
MacOS Input Fix [1.0.0]
Make Bubbles Pop [0.3.2-fabric]
MidnightLib [1.9.3]
Mod Menu [17.0.0]
Moderner Beta [4.1.8+1.21.11]
More Chat History [1.3.1]
More Culling [1.6.2]
No Chat Reports [1.21.11-v2.18.0]
No Chat Restrictions [Fabric-MC1.21.11-v1.0.0]
No Resource Pack Warnings [1.4.0]
No Telemetry [1.10.0]
Noisium [2.8.3+mc1.21.11]
NotEnoughAnimations [1.12.3]
OneWorldFolder [1.1.2]
OptiGUI [2.3.0-beta.10+1.21.9]
Panorama Screenshot [1.1.0-1.21.11]
Placeholder API [2.8.2+1.21.10]
Polytone [1.21.11-5.7.2]
Reese's Sodium Options [2.0.3+mc1.21.11]
Remove Reloading Screen [5.1.15+mc.1.21.11]
RenderScale [1.3.6]
Shulker Box Tooltip [5.2.16+1.21.11]
Simple Music Control [1.4.0]
Simple Voice Chat [1.21.11-2.6.18]
Skyboxify [2.8]
Sodium [0.8.12+mc1.21.11]
Sodium Extra [0.8.3+mc1.21.11]
Sodium Shadowy Path Blocks [6.0.0]
Sound Physics Remastered [1.21.11-1.5.1]
TCDCommons API [5.1.0+fabric-1.21.11]
Void Fog [2.13.2+1.21.11]
Voxy [0.2.16-beta]
WorldEdit [7.4.2+7450-eb8e82c]
WorldEditCUI [1.21.11+01]
Xaero's Minimap [26.1.0]
Xaero's World Map [1.41.0]
XaeroZoomout [2.0.0]
YOSBR [0.1.2]
Yeetus Experimentus [87.0.0]
YetAnotherConfigLib [3.8.2+1.21.11-fabric]
e4mc [6.1.2]
spark [1.10.170]

Processor:
Intel(R) Core(TM) i7-14700 (28 CPUs), ~2.1GHz

Graphics Card:
NVIDIA GeForce RTX 4070 SUPER, Version 32.0.16.1047

Reproduce the issue in Minecraft 1.21.11 with Voxy 0.2.16-beta, shaders disabled, and Gerudoku Faithful or OG Water Pack; compare the result with a shader enabled and with a grid-format colormap pack. Trace Voxy's distant-water rendering and its handling of vanilla-format water colormaps. Done means distant water is visible without shaders for the affected packs.