Water displaying incorrectly since 7.1.12 with certain environment settings

Environment

Second Life Release 7.1.13.14343205944 (64bit)

Description

Since changes made in 7.1.12 (7.1.11 and before doesn't exhibit these issues), certain water environments are rendering incorrectly depending on the setting chosen for the water environment. Also depends on the angle you view them at, some of them if you look at them from a top-down angle, they appear correct.

Here is a screenshot of it rendering incorrectly-

Here is a screenshot of it rendering correctly on a 7.1.11 build-

The location used for testing- http://maps.secondlife.com/secondlife/Shoreline/27/83/20

List of non-working/changed water environments based on the provided location-
Some of these look correct if you look from a top-down angle instead of straight on at a normal view angle

• Shared Environment (would be dependent on the region settings, but at the location solid dark blue)
• Lassies Clearwater (Solid dark blue)
• Nacon's Capiliry OCE (Solid light blue)
• Nacon's Frozen water (Solid blue, with only some ice effects, but not ice everywhere like in 7.1.11)
• Nacon's Pixel Water (Solid aqua)
• Nacon's Pixel Water 2 (Pixel effect really exaggerated)
• Nacon's Retro-wave water (Retro-wave effect really exaggerated)
• Nacon's Retro-wave water 2 (Retro-wave effect really exaggerated)
• [TOR] Coral Reef (Sky blue, looks correct from top-down)
• [TOR] Fantastuck (Blue and reflective)
• [TOR] Freak-A-dermia (Light blue, looks correct from top-down)
• [TOR] Glaznost (Solid grey)
• [TOR] Grantamount (Light blue, looks correct from top-down)
• [TOR] Hpmod (Solid grey)
• [TOR] Placida Brite (Solid grey)
• [TOR] Raw sewage (Solid dark brown)
• [TOR] Showing age (Solid dark grey-blue)
• [TOR] Whickedly (Solid grey)

Possibly many more are "incorrect" but they are close enough to what they should be that it isn't easy to tell without closely looking.

If a lot more screenshots are required to show the drastic change in rendering, I can take the time to try and make as many comparison screenshots as I can.

Reproduction steps

1. Visit http://maps.secondlife.com/secondlife/Shoreline/27/83/20
2. Use shared environment for water, or any of the other ones with issues listed above
3. Observe the water is just a void of solid dark blue, instead of correctly looking like water waves, or any of the incorrect colours/effects if not using the shared environment.

Reproduce the issue at Shoreline/27/83/20 using the listed water environments, comparing viewer 7.1.13 with a 7.1.11 build and varying the viewing angle. Investigate the water-rendering behavior associated with the 7.1.12 changes. Done means the affected environments display their expected waves, colors, reflections, and effects at normal viewing angles.