Touchpad buttons changing size due to scaffolding and swimming

After the new update to the touchpad for PE edition i have an issue where after i adjust the buttons to my preferred size it will randomly go back to default/extremely small when i use scaffolding. effecting the up and down arrows and my jump button. It will also do this sometimes while swimming but it fixes itself and doesnt effect the jump button. This is extremely annoying especially in Pvp games where i cant take time to fix it.