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I stripped the factory grease with a few cycles of Surfex hd, then dried on a paper towel in the oven, laid the chain flat and applied the Squirt lube onto the chain links. The link was not on the chain at the time, I only put a few drops on it after mounting the chain. Maybe it the wax didn't get between the plates. This is on a new bike, usually I would apply it on the bike and spin it around a few times.
I have now wiggled it around a bit more and put new Squirt on the whole chain, seems a bit better, if its still stiff tomorrow I switch to KMC.
Obvious question but … did you strip and immersion wax the chain? It’s normal for all links to be stiff after that … until expertly wiggled.