PVA Acceleration Mode Option Missing from FastL4 Profile

OK here's a wierd one. I have upgraded 5 pairs of LTMs from 9.3.1HF8 to 10.2.0. Along with those software upgrades, 4 pairs were also migrated to new hardware - 6400s to 6900s. The process for the hardware migration was to first upgrade the 6400 to 10.2.0, generate a UCS, then install the UCS on the new hardware. This process worked great in all 5 cases.

 

 

Today I had a reason to review and compare the built-in FastL4 profiles using the admin GUI. It appears that the only pair to have the "PVA Acceleration" option in the FastL4 profile is the pair that did not move to new hardware. The config file has the parameter set to full.

 

 

Normally this wouldn't be a big deal, but the acceleration option for my wildcard virtual servers on the new hardware is set to None and I want them to be Full.

 

Can you think of a reason this might be? Seems like the type of thing I need to open a case on.