Both issues I reported seem to be fixed now
Quote- Windows runtime (2.5+ DLC): new "Optimize String Objects" option in the properties of the application that allows you to disable String object optimizations in DirectX 11 mode (this optimization can cause graphic glitches in some cases).
I've noticed some occasional glitches in my game where certain string objects appear too small. I've found that forcibly setting their font size 2 or 3 times in a row usually forces them to behave. Is that the sort of glitch that might be fixed by unchecking this new setting?