I am not going to worry about it too much but there was some weirdness with provider downloads when using an older version 3.116.0 of the cli on a stack that had been touched by the newer cli 3.131.0 In my case we have a private provider hosted on github, a stack that has that provider pinned with a version and a download url. The stack was run using newer CLI at some point. Then the older CLI was unable to pull the pinned version and kept saying it didn’t exist in the pulumi repos. I suspect something that got put into the state is incompatible with the older CLI. Like I said, not gonna worry about it, since upgrading everywhere to 3.131.0 fixed my issue, but just in case someone else hits it.