Geriatric psych facility vs memory care staff conflicting reports, any advice?

We've recently moved our mother into a memory care facility. Everything happened exceedingly fast. She went into a fast decline within 3 months of living independently to a two-day hospital admission to a two-week rehab stint for PT where she was "combative" as in physically violent then transferred to a geriatric psychiatric facility for 2.5 weeks for further evaluation (UTI was discovered) and medication adjustments (she's now on four meds for dementia/depression) where we just now moved her into a memory care facility. We were told by the Ger. Psych she was non-combative and med compliant though she sometimes didn't want to eat and did not like attending therapy (but went) and had suicidal ideations stemming from depression but talked about them. Two social workers at the facility felt she was an excellent fit for memory care despite these issues as memory care would definitely help. Two days after arriving at the memory care facility, the director contacted us as we had major concerns about her previous red flagged behaviors at rehab and she assured us that our mother was compliant and sweet though confused and suffering from another UTI so she wasn't eating as well. My mother did visit with several other residents for the first two days but as since opted out of a therapy group and has isolated in her room likely from UTI symptoms. A doctor just called my sister to tell she has serious concerns about our mother's behaviors and mentioned she had all sorts of red flags on her geriatric psych evaluation and wasn't sure about her ability to stay as a resident because she's so combative. You can imagine we were both all kinds of confused since none of her behaviors at the psych facility were described as "combative" and had been assured by her doctors, nurses and social workers at the ger psych facility she was doing well and there were things to work on that memory care could help improve including depression and isolation. She's only been there three days and is settling in but is expected in the midst of a UTI to attend a group therapy when she hasn't even started medications antibiotics. And UTI's tend to impact her appetite. So, is the term "combative" a catch-all phrase to describe not only aggressive and violent behaviors but also if she says not to attending therapy one day or eats less? My sister is sobbing because she's terrified they're going to kick her out and she's not even been there a week. She said the doctor was extremely pessimistic about my mother's chances. The only thing we got out of it was a promise to get a urologist on the books to see if we can find the cause of her recurring UTIs.