Katrina's legs were crossed alternately in between shots where she was sitting on a table, talking with Ava.
In the restroom, Katrina smashes the full-length mirror with a soap dispenser, but we are never shown her tearing any of these off any wall prior. In the next shot as she rages in front of the sinks, all the soap dispensers are clearly still attached to the walls.
The RHS monogram on Ms. Sinclair's jacket has the H in the middle, larger than the R and S. The R should be in the middle, larger than the H and S.