I've seen similar spins on this question before but not one that adequately answers it.
In the following (paraphrased, not literal) config on a Cisco SF300:
FastEthernet1 Port mode General General access VLAN 20 tagged General access VLAN 10 untagged PVID 10
If I plug a PC into this port, any untagged packets entering the port will internally enter VLAN 10. Any traffic on VLAN 10 will exit that port untagged. This I completely accept since I use it on a daily basis.
What's the purpose of setting untagged access without setting PVID? Is untagged ingress traffic going to just go nowhere? If so, what's the purpose of having an untagged VLAN that can't communicate bidirectionally?