Lubed Chain getting temporarily seized
My chain did something similar but less severe, I was cleaning it and adding dry lube from a posh brand, then keeping it and riding it indoors. The chain got gummed up and harder to turn. 

What I needed to do was to clean it more thoroughly. I might have been breaking down some of the oil every wash but it must have been leaving a cumulative sticky residue, 1, adding friction and 2, preventing new lube reaching every inner surface. What I was doing was effective for a different lube but not the one I had switched to. 

Try giving a more thorough wash (degreaser first) and use a sponge on the chain rollers to carefully work the dirt out of the links. Then rinse thoroughly. Dry the chain with a towel and allow it to dry fully before adding new lube to every link and turning the chain backwards to work it in. Wipe away excess lube. 

I you think any dirt or residue remains when you’ve rinsed the chain, repeat the cleaning.

I don’t think ‘bad’ lube would be the main cause, because you should be able to clean away any bike lube with the right cleaner.