It appears there's a texture-related bug that is causing a crash. Here is the logfile:

crash-2017-07-15_15.51.02-client.txt

Hope this helps!

same crash here ...

Can you check if it still happens with those builds ?
MalisisCore : https://puu.sh/wKrNI.jar
MalisisDoors : https://puu.sh/wKrPy.jar

Got this
crash-2017-07-15_16.32.48-client.txt

Can you confirm it happens on the client ?

That is a client crash log. It happens on the first loading step when you launch the client.

For some reason, the game can't find the class PngSizeInfo, I have no idea why...
And it doesn't happen in dev either...

crash-2017-07-15_16.46.17-client.txt

I have bumped it down to just these mods:

I'm using OpenEye so a detailed break down of everything plus some more info is uploaded automatically to there. The most recent ones with just the affected mods dont seem to be showing up on the OpenEye site yet (I guess they're processing).
http://openeye.openmods.info/crashes/5a7096f3cbd10edfe174976f13be37cc

http://openeye.openmods.info/crashes

Here's the openeye files for the pending reports that I have in my folder:
Pending Crashes.zip

Don't bother, the crash happen with only Malisis mods installed.
I kinda figured out what the problem is, but I have no clue how to fix it...

Care to elaborate? Maybe some of the others looking at this can assist?

Basically, I can't let the ASM library recompute the stack frames as it fails to infer the common super class, I have to include them manually.
Or at least, that my understanding of the issue.

You could also maybe create your own classwriter that has hardcoded common superclasses for the classes it fails with. Maybe it would work. I've never tried it.

Fixed.