Version Info

• Minecraft, 1.16.5
• Connected Glass, 1.0.7

Description of the Bug
Unlike vanilla glass, ConnectedGlass blocks will display the water drip animation if there is water above them. This can be easily fixed by adding the "minecraft:impermeable" tag to the blocks.

Steps to Reproduce

1. Build a vanilla glass ceiling under a body of water and note the lack of dripping.
2. Replace vanilla glass with ConnectedGlass blocks.
3. Water starts dripping

Screenshots
Annoyingly, I tested the fix before thinking to get a screenshot of the before behavior.

Oh I didn't even realize "minecraft:impermeable" was a thing. 😅
I fixed it now in version 1.0.8 for Minecraft 1.15 and up.

Thank you for reporting the issue!