I recently obtained a full set of X-01 power armor from the building next to the Courthouse that's guarded by an Assaultron and a Sentry Bot. I brought it to my power armor station in Jamaica Plains and immediately started fiddling with it. After upgrading all the parts to Mark V I (being the sort of bugger who takes everything that isn't nailed down) immediately set about upgrading my power armor legs with calibrated servos for that increased carry weight capacity. This is where the problems started. I could modify either my left leg or my right leg with calibrated servos but as soon as i had modified one the other immediately grayed out. It says I lack the requirements even though my science level is three and I have enough mats to make it. I'd previously upgraded both the legs on my US Army T-60e and Minutemen T-45d power armor with calibrated servos. So what gives? I'm on the Xbox One and would appreciate any help people might be able to offer.

Did you try taking one of the legs to another set of armor and upgrading it there?

Seems you could just seperate them, then put them both back on the same frame.

Try a bit of fast travel, or re-engage the rack again. Hell, powering off the console might have fixed it for you.

It's a general crafting bug I've seen on occasion with PA. Usually it happens with repairs in my case.

I tried turning off the console and reengaging the rack.