After the latest update when you do /prod nothing happens. Worked fine before update.

Please check your oxide/logs for errors.

this can be closed, went to another plugin.

I am having the same issue. /prod isn't displaying anything. 
I have deleted everything from the old version (plugin, config, data file) and added the new version. It compiles successfully, creates the config file and populates the Prod_BuildingData file:

15:47 [Info] Prod was compiled successfully in 2119ms
15:47 [Info] [Prod] Prod: Creating a new config file
15:47 [Info] Loaded plugin Prod v2.5.0 by Quapi​

Same issue here. No errors in logs, Just doesn't display in chat. If you enable Print to player console instead, that works.

The new version 2.5 does not work, nothing at all. previous version super, reverted back to the previous one.

I went back to the version before this and it is working with out issues. For sure a issue with the new version. 
So something is for sure wrong with the mod. 

same issue no errors in logs shows loaded.

LesbianSeagull

this can be closed, went to another plugin.

What plugin did you fly away to?

Yep confirmed. v2.5.0 doesn't work, v2.4.1 does. I've reverted.

I have gone back to v2.4.1and it is now working again.  Tried it on 2 Servers.

I reverted too, fine on 2 Servers

Same problem for me. No error in the console but version 2.5 does not work. I have reverted to version 2.4.1 and it works.

Same issue I reverted back to 2.4.1

Not working for me either