Open a document in MN3 and put iPad Pro (2018/12.9 inch/iOS 12.2) in landscape, then lock the screen. When unlocking iPad in portrait, the page indicator bar which should be below the text does not revert to the correct position. Instead, the page indicator mixes with text in the same absolute height as landscape.
I tried different ePUB and PDF documents, none exception, even the welcome document.
Hope it will be solved soon.