NomadBSD won't install, black screen

After selecting different settings, I clicked the download button, and saw this picture: the screen became black, the cursor remained but not the same as it was at the stage of configuration, in the upper left corner of the screen appeared block, as if there is something that should be written, I waited so about 30 minutes, I realized that this is a bug, rebooted, read about the problem, revealed the solution: when you boot into the system, press the number 7, and enable the setting Disable cons, it did not help, so I’m creating a question, because in the forum has not found a solution.

UPD: I should note that during the “black screen” the cursor does not move at all, just stands still, as well as this “block” does not move.