Too late to report bruising on special needs child from a year ago?
For some background, my toddler is developmentally delayed and autistic, with limited vocabulary. I share long distance, interstate custody with my coparent (Dad), so this means our child spends the holidays and summers in his state, with his wife and child. Last year, our child came back from a visit with bruises on her inner upper thigh, close to her diaper. When I pointed this out, he stated it must have been from holding her wrong while carrying her in the airport. I did take photos because I found it suspicious, but unfortunately didn't think to take her to the doctor. This last Christmas, our kid was taken to the emergency room with nurse's elbow injury. (My ex didn't inform me, I just happened to see the the claim on the insurance portal.). Apparently, he told the doctors it was caused by his mother (Grandma) pulling on her arm when she was trying to get her to nap. Doctors didn't report them to CPS.
Now for some extra concerning issue: my ex is currently divorcing his wife. His attorney stated that his wife is volatile, has destroyed their property, and ripped up photos of our daughter. (His wife has always resented our child existing, and it's because my ex hid that we had a child when they initially met and dated.). Now I'm concerned that our daughter experienced domestic violence in their home. Is it too late to report the prior injuries?
(His wife has since moved out of state, but since our kids attend the same daycare, I worry that she still has access to our child during times that she flies back to do their own separate custody exchanges. She also gets information from a parent portal.).