I made a loot table with treasure items (gold, emeralds, lapis, iron and diamonds) and placed it on the server in the correct folder.

Then use a command block to with the 'setblock' command to place a chest using that loot table it fails to fill with loot.

If I change only the table name in the command to another I already have working and try again it works fine.
Change it back => empty chest.
Delete and recreate new file on server with another name => empty chest.
New loot table file with just dirt as contents => Chest with dirt.

I have no idea why this is failing. I have tried many different things, restarting server between changes, restarting client between changes.

This seems inconsistent, but always with the treasure contents being empty.

The attached files are the working and not working tables respectively.