1.5.x shows default Java icon in the taskbar when started with new launcher

Known issue, the hacky asm code that was supposed to fix it has issues with some of the arguments it gets (negative sessionids) so until that is fixed we cannot put that in between to launch the game.

For me it just eventually (in a few seconds) fixes itself.

Not fixed.

not fixed indeed

Is this where it shows a gray rectangular icon instead of a crafting table when you open the new launcher? (I don't know if it helps, but I have a Mac.)

Fixed with Launcher 1.1.4 / Launchwrapper 1.4