In minecraft Pocket edition Inadvertent Click?

I have since today the problem that if I place once Click two blocks and I can't stretch a sheet why is that and how can I fix it? - I'm at the laptop

Display.

I'm at the laptop

Mouse.

And I fix that how?

First, then this is not the Pocket Edition, but the Bedrock Edition and then second, you should buy yourself a new mouse.

I bought the xd only a week ago

Then it is all the more important.

Joah. That does not matter, it can still be broken or you have to look in your Windows 10 device manager, if everything is set correctly.