I don't know if this was intentional or not, but the casting machine inputs/outputs don't work as shown on the alt mode. Additionally you changed the primary inputs from the sides, to the top and bottom of the machine which breaks most existing blueprint packs for space exploration. If the Krastorio machines also change those orientations, you should make a check to find out which mods are actually being used. I'm not playing with K2 installed and installing this broke most of my base so I just removed it again.

I patched this so side-by-side setups work again:
https://mods.factorio.com/mod/SE_xors_tweaks_casting_patched

So this isn't affected if you have K2 + SE and this mod? Just SE + this mod?
In the picture below, are those in the right directions?
https://i.imgur.com/TqxmZov.png

Synthe6: K2 doesn't impact this. You've got Xor's modified casting machines (the liquid metal coming from the short ends) so if you ever uninstall his tweak mods the metal inputs will switch back to what they in Space exploration (on the long ends). My tweak of the mod puts the fluid boxes back on the long ends so the mod is more easily installed/uninstalled.

I'm pretty sure I had a more or less good reason for doing this but I don't remember. I might have been because of the water-cooled casting and it making more sense that way for that recipe. Need to look into this in the future I guess.

I tested both water and cryo cooled recipes and they all seem to work fine with the fluids put back to SE normal fluid boxes but I totally could've missed something.