Try mode: Exp bar showing wrong color and doesn't charge

Bug in try mode: when you set lvl to 12 or 2 or 20, my team’s experience bar color starts to be red (instead blue), and it doesn’t show true progress - it only grows 2-3 mm and stops.

edit: I got that bug with 2 heroes in the row. But 3rd time I didn’t, so I don’t know how to reproduce it. The only thing I did is I didn’t pick any talent at lvl 1 (and they were shown on screen all the time, i didn’t remove talent menu).