Hi David,
Thank you for contacting syncfusion support.
#Regarding SFAccordion inside SfListView Height Issue
we regret to inform you that we could not replicate the reported scenario from our side. We have prepared the sample as per given information and we have tested the sample with Android X (RealMe x2 pro) device. Please refer to the tested sample in the following link for your reference.
Please check the sample and let us know if you still facing the same issue? If not, could you please modify our sample to reproduce the issue which would be helpful for us to check on it and provide you the solution at the earliest.
Regards,
SaiGanesh Sakthivel