I use the Shield of Reflecting alot in the Eyes of Stone quest and basically anywhere there's a medusa.
After this patch, the shield seems to only partially work. You are slowed from the stone gaze, but before you are turned to stone the effect is removed (in the combat log it says it removes the effect) but the shield still shows 5 charges.
Before this patch 11.1, the shield nullified the gaze completely, no slow, no stoning, it just consumed one of the 5 charges and protected you from the stone gaze.
I bugged it, but i've found that mentioning bugs on the board as well as bugging them helps. Plus, it lets others know.