Trouble Clicking Clash of Clans

Hi i downloaded this as im sick of Andy emulator and wanted something new and liked the look of this, so i downloaded it to play Clash of Clans on and first time actually using this to attack was in a war and i started to attack and it wouldn't let me select certain units had to keep clicking and clicking then eventually let me select them. Why dose it do this and as anyone else had the same issue with this?

from xda-developers http://ift.tt/2cDsRrt
via IFTTT