Columns randomly changing order

My site seems to randomly change order of my content columns. I have a fixed max-width website, but the content inside is percentage-based columns. Usually 3 columns, navigation-content-utility.

I will save a page in the correct order and come back with my column order utility-content-navigation. I’m certain nobody is making this change. In fact, when I open the builder UI, the order magically returns to the desired order. A small alteration and save fixes the issue… at least temporarily. Its like playing a design bug wack-a-mole.

Anybody have a suggestion? See below for examples.

Incorrect Order: