Cannot take blocks and server lists are all selected

I was opening Minecraft and was going to join Hypixel and then when I clicked Multiplayer, all of the servers were selected. When I joined Hypixel, I could not take anything out of the shop or anything. I had to click and drag blocks to my inventory to get them, not just click. I tried this on all of the servers, and I even tried to open my chest in my own world and take blocks out, but I still had to click and drag it to my inventory, so no right clicking the blocks and taking half or shift clicking to get blocks faster. The pictures below are proof.