Mine has also changed to met minimum requirements once you get cleared for chemistry that whole box will disappear (or it did for me). Considering you are trying for UQ Dent i emailed the admission office and they said last year you needed low 180's (181-182 or something) for the combined score, but a minimum of 58 in section one (this info i was not aware of before). Obviously you need a OP1 (school leaver) and if you studied chem at uni (i assume you may be selected off a GPA instead) you need at 5.8 gpa if you went to a Go8 uni. I asked if this GPA was likely to change and they said no. If people are looking for UQ Med I have no idea sorry.
QTAC do not seem to like giving out your scores over the phone. If you need your UMAT score I suggest you go to ACER's website and apply for new password, your log in is your email from memory.