Font switching to Courier on iPad after editing in Windows version

I have Scrivener set to Palatino on my iPad Pro and to Palatino Linotype on Scrivener 3 in Windows and I’m synchronizing on DropBox. The entire text of all the chapters I’ve edited on the Windows version gets switched to Courier when I open the same project again on the iPad. I’d really like it to stay in Palatino on both systems. Is there any way to avoid this? I was hoping that using Palatino variants on both systems would be compatible.