Tutorial 3/F2-key

Help needed. Got stuck in Tutorial 3. I’m ordered to select all military units by pressing F2 but it doesn’t work. This only selects the brightness mode. Selecting the units and sending them to the upper left corner doesn’t work, neither in normal movement nor in attack mode.

Just tried it and I cannot replicate this error if it is Beginner Tutorial 3 youre refering to when controlling Zerg.

Are you by any chance holding any modifier keys like SHIFT/CTRL/ALT or others when pressing F2? There are no hotkeys that I could find that brings up brightness menu or adjust it.

the shift key, that’s it. Thank you!