4 psychologists said my daughter is lying about being sexually assaulted

To keep a long story short my 15 year old daughter told me her teacher sexually assaulted her. We have gotten the proper authorities involved and are pressing charges. It's a big investigation and I took my daughter to a psychologist and this psychologist told me that she's gonna be honest but she doesn't think my daughter is telling the truth. She said it's normal for victims to not remember certain things correctly but that my daughter changes her story at least 3x every session they have and she contradicts herself all the time. She also said how my daughter talks about this teacher it sounds like she was mad about something else. I took her from that psychologist and 3 other psychologists have all said they believe my daughter is making it up. I'm not sure what to do. I want my daughter to know I will always believe her but 3 different psychologists are saying she's not being truthful. My daughter's dad told me to stop pulling her whenever they say that because if she isn't being truthful they may be able to at least get to the root of why she's lying if she is. This is just a very confusing thing to go through. I was sexually abused as a child which is why this hurts me so much...

Edit: I know people are along if my daughter has a history of lying. She had issues when her friends would fall out she would do the typical stupid teenage girl starting fake rumors nonsense. But she never did anything this far. I have decided to take her back to a psychologist and let them help her. I thought I was protecting her by taking her away from professionals who don't believe her but maybe I'm doing more harm than good.