Please open a service request on supportnet for these issues. If that is inconvenient, I can open one for you if you email me at firstname.lastname@example.org. We need to see the two verrsions ( the PADs design vias and also the one that you added themal vias to manually) to know what the root cause is. Thank you for your patience and assistance on these issues.
I have done that but our phone system is down at the moment and I hoped there was an easy answer. I'll wait on support contact me.