I'm having an issue when I installed the mod I cannot burn Dark Oak Log again in my furnace.
Before it was working normally. Even the Iron Furnace from Tech Reborn didn't work as well.

The case for regular furnace I can't even put the Dark Oak Log into the top slot, but in the Iron Furnace I can put it but it just doesn't burn.

When I removed the mod everything went normally, the regular furnace will burn the Dark Oak Log into charcoal.

Here is the log if needed.
latest.log

Disabling fastfurnace feature in the config fixed it