Unable to drag blocks out of block selection

Hello. I’m new to MakeCode, so I need some help. I’m trying to do the Skillmap, and I’m on the part of the platformer path in which you have to make the player win when you get the trophy, but only on the second level. So, I get everything set up, with the if/then else statement. I try to drag the "game over " block into the workspace, but then it instead starts scrolling, and I stop holding down my mouse button and it still keeps scrolling the workspace, and I have to click on the scroll bars to stop it. This keeps happening with any block I try to drag in. Please help me resolve this.

wait what is happening