Block doesnt break normally

Basically, minecraft mobile has a button to break itens, but if you click it to break something, the block just break and then the block just appears, then i need to press it and keep my finger on the button to it break(basically i need to spam to it break) and also if i try to break it and i stand above the block, i just noclip it, but some blocks like tnt break normally (sorry for bad grammar im brazillian)