Crashing supersource/browser under full load, NDI audio doesn't work, multisource freezes temporarily when switching 4 NDI/SRT sources, firmware upgrade to v2.1 made supersource even more unstable, no mix-minus or bus audio mix, only very basic audio mixer - no gain reduction indication, delay works only for Mic1&2, laggy multiview, ISO record colours do not match PGM record colour, unreliable Windows application - sometimes changes are not reflected on the mixer and crashes when changing multiview options.
This is a decent switcher for a hobbyist, but very far from a professional product.