Scroll button doesn't work on snapshot 17w41a

I was going to see if there was any new blocks or if they had moved the blocks into different categories. Trying to scroll in every category didn't work. So I had to search the blocks but still then the scroll didn't work. Please fix this Mojang.
Specs of laptop:
Intel Atom CPU Z375F @ 1.33GHz
32-bit Windows 10 Home Lenovo Ideapad 100S
2.0GB DDR3 RAM
SanDisk DB4032
CPU is slow so I can't go on Mineplex but I can go on Hypixel which has more people.
I have to play with Graphics on Fast, Clouds OFF and Small Render Distance
Anyways could you fix this Mojang.