DurabilityDrainModifier not working on dedicated servers

I am hosting a small dedicated server for some friends and I, and for various reasons we wanted to disable equipment durability damage (among other settings changes) after the server had been up for some time and we had a better idea of the default game balance.

To do this I ended up starting a single player game and setting up the options how I wanted them on the server, then copying the ServerGameSettings.json file from my single player game into the server's folder.

I verified that several of the settings did correctly transfer and were working in game (inventory stack size multiplier, merchant stock multiplier, etc) but regardless of this we've noticed that our equipment still takes damage, and the detailed settings view on the server list still shows the durability loss modifier at 1. I will note that in single player, this same settings file does what it's supposed to and my equipment does not degrade.

Attached are the json file (saved as txt so the uploader will take it) and a screen shot showing the relevant section of the server's detailed settings. Please let me know if anything else is required.

ServerGameSettings_opszwb.txt