When Rose goes to sleep the night we witness her having her first nightmare, the curtains above her head are closed. When she wakes up, the curtains are open and neatly tied to the side.
When Rose wakes up from her first nightmare, the sleeve of her nightgown continuously changes from being off her right shoulder to on it, then back off again between shots.
The beginning scene is set in 1922, but at min. 8:17, the dad is seen laying down a Bronze Star medal on the nightstand which wasn't awarded until 1944 (retroactive through 1941.)
During the father's flashback scene to WW1 most of the German uniforms, weapons and equipment are from WW2.
When Young Rose escapes her father, the panties clearly visible through her nightgown are modern, not what would have been worn in 1922.