Unable to Deploy SEM Virtual Appliance with OVA

When attempting to install a new SEM Virtual Appliance in vSphere, we get the following error:
"Status: Failed to deploy OVF package. Error stack: The checksum(s) from the provided manifest file do not match the content of the file(s): "

We're on vSphere 6.7, using Chrome and the newest version of SEM (2019.4 07 Nov 2019)

I know that upgrades to SEM are done with an ISO, but am I correct that a fresh install (not upgrade) is done with the OVA (as the installation guide says)?