there is more info in that github issue, and the ones it links to. but the short version is (for me anyway): assets serialize into the state file, and between 2 consecutive

pulumi up

commands it should work fine, see no difference. but if you

pulumi refresh .... pulumi up

then the

refresh

will cause the state representation of the asset to change, causing a diff to show up on the next run so my current temporary solution is to just not run

pulumi refresh

at all

in the c# sdk on top of that, the changed representation leads to an internal exception being thrown. idk if that is true for all languages that it breaks - maybe the state changes but it is still a valid representation

Great investigation