CSCvz09624 - Cannot remove duplicate VLANs on vNICs in UCSM 4.2(1d)

[AshHines64912]

We also managed to resolve this issue by changing the vlans of the duplicate entries and then deleting them

[pk_20]

I have a concern, 

if we have upgraded to 4.2.1 and effected with bug. what is the best practice. 

do we need to follow the work around? or upgrade to version 4.2.1i/4.2.2a - since cisco released the bug fixed version.

Workaround:
Downgrade to lower version of UCSM
Confirmed workaround works with 4.1(3b) and 4.1(2b)