FoundationGames
Block entities are invisible on servers with resourcepacks
Some server resource packs have "blockstates" and "models" folders copied from minecraft.jar (probably for X-Ray blocking). This causes invisible blocks in this mod.
Resourcepack with all files causing the problem: sample resource pack.zip
Enable "Force Resource Pack Compatibility" in the Block Entity Settings menu/ModMenu configuration menu for EBE, and let me know if it works
(As a side note, a server resource pack is a very poor method of x-ray prevention if you have players using client side mods like EBE, but I understand that it's none of my business to tell people how to run their servers. From my own personal experience, I would suggest block scrambling anti-x-rays, which work well against both resource pack and client mod x-ray cheats at the cost of some networking performance)
Enabling the "Force Resource Pack Compatibility" option resolved the issue. However, when I use LambdaBetterGrass, this option doesn't work.
Now I noticed that the "Force Resource Pack Compatibility" option with LambdaBetterGrass makes the chests invisible even without any resource pack