Not sure what you mean with Minecraft issue but the launcher crashes. My crash log looks identical to Gavin's. Seems to be a problem with the Chromium used by the launcher if that is what you mean?
Well, I haven't tried it with a newer OS on the same computer. Can do that tomorrow when I have my fat external disk with all OS X versions. (I need to run 10.8 on my laptop because of old toolchains necessary for work.) My guess is that it is a compatibility problem with Chromium and OS X. I.e. the problem occurs somewhere between MCL, Chromium and 10.8. But I haven't looked closer so I reserve the right to be completely wrong. (Does Minecraft have an official requirement on minimum OS X version?)
Exact same issue here for m under OS X 10.8.5. Works on another Mac under 10.9, but 10.8 seems to be no go.
Not sure what you mean with Minecraft issue but the launcher crashes. My crash log looks identical to Gavin's. Seems to be a problem with the Chromium used by the launcher if that is what you mean?
Well, I haven't tried it with a newer OS on the same computer. Can do that tomorrow when I have my fat external disk with all OS X versions. (I need to run 10.8 on my laptop because of old toolchains necessary for work.) My guess is that it is a compatibility problem with Chromium and OS X. I.e. the problem occurs somewhere between MCL, Chromium and 10.8. But I haven't looked closer so I reserve the right to be completely wrong. (Does Minecraft have an official requirement on minimum OS X version?)
I was successful with the legacy launcher, although the Minecraft game complains about using an old version of Java now: https://minecraft.net/en-us/download/alternative