Hi ImaRelic,
please check the following things:
- Do you have vCenter/ESXi valid certificates (green/tust) ?
- Does the browser have a trust for the esxi to upload ? ( Check https://esxihost.my.dom (no sec warning) )
- Does the vCenter have a vmx file version (7,11,13,15,!17), support for the OVF/VMDK imported ?
- https://kb.vmware.com/s/article/1003746
- Remove MD5 Sum file if use OVA/OVF (remove .mf file if exsist)
Best Luck
moellerjot