block update issues

I'm having an issue where if a structure block or an entity places a template over an area which contains blocks which require support, said blocks tend to break, making a sound, and leaving items on the floor. (Though curiously if i power the structure block with redstone instead of hitting load manually it doesn't have this issue)
Is there any way to solve this issue? I have some ideas for workarounds but they add some restraints I don't much like