Furnaces burn more wood

My players report that small furnaces consume more wood than usual. I have done checks on one server with the plugin and another server without the plugin and there is a difference between the wood consuming for the same amount of materials. 

I have also tested with various settings but I can't get the wood consuming ratio to stay stable. I attach my configuration in case it can be of help to investigate the case.

I also attach two images, one of the server with the plugin and one without the plugin to see the difference in consume.

Thank you for looking into the issue

With SkillRates

Without SkillRates

Config file: SkillRates.json

ok, I'll check

Any news on this? I think I'm going to have to deactivate the plugin if it's not fixed

Changed Status from Pending to Closed

It is not solved. The problem is still happening.