The game freezes for a fairly long period of time after "mod loading complete" with both mods. It also throws it back to the loading screen for more atlas stitching after reaching the main menu.

https://hastebin.com/itepavetab.sql

Does this still occur if you disable tnt_is_dynamite and oak_is_apple?

I'll try.

It's still frozen after mod loading complete, but for a shorter time. The double-loading is gone.

Please run the game with the JVM argument -Dfabrication.debug=true and send the full log.

The game isn't crashing and OptiFine is a closed-source hunk of garbage so I'm just going to call this fine.