What is happening?
WHen I try to construct a salination part with a copper block from galacticraft it doesnt work. When I try to construct a mekaism copper block with mekanism copper ingots, it makes a galacticraft block.
What is expected?
I dont know, Seems like the mods are fighting for superiority on whos block to use.
How to reproduce?
Try to construct a block of copper with mekanism ingots when galacticraft is installed.

Server or Single Player?: Both
Crash Log?: No crash.

this isn't a mekanism issue, is is an issue with the galacticraft metals not being properly implemented into the ore dictionary.

Ah, so go bug Micdoodle then, gotcha. :)

if you dont feel like waiting, download minetweaker and use this as a script:

<ore:ingotCopper>.add(<GalacticraftCore:item.basicItem:3>);
<ore:ingotTin>.add(<GalacticraftCore:item.basicItem:4>);
<ore:ingotAluminum>.add(<GalacticraftCore:item.basicItem:5>);
<ore:ingotAluminium>.add(<GalacticraftCore:item.basicItem:5>);
<ore:blockCopper>.add(<GalacticraftCore:tile.gcBlockCore:9>);
<ore:blockTin>.add(<GalacticraftCore:tile.gcBlockCore:10>);
<ore:blockAluminum>.add(<GalacticraftCore:tile.gcBlockCore:11>);
<ore:blockAluminium>.add(<GalacticraftCore:tile.gcBlockCore:11>);