Paintings Vanishing

To put it simply, after an amount of time that i wouldn't be able to specify exactly unless i checked every five minutes, paintings in my creative world (with the enhanced graphics on at max quality, 14 chunks, if that matters) randomly get destroyed, i know this happens because i can find the items sometimes, however most of the time the paintings are gone without a trace, its seemingly most common with newer and larger paintings, although i couldn't be sure. Either way, please do try and spot the issue, my poor creative world looks uglier by the day and i lay in bed for hours and hours weeping about it, so i pray you guys can spare me of my misery.