ios assetbundle not loading issue

Out of the blue, asset bundle no longer work on IOS after bundle update!

Error from device was:
bundle can’t be loaded because it was not built with the right version or build target.

Why would this suddenly break? Unity was not updated, libraries were not updated. Only assets from the bundles were updated. Clients were built using Unity 2019.4.22f1.

Android works, editor works, but iOS fails.

Anyone know what the issue and cause is and how to fix?

#UPDATE
No longer an issue, please delete…

Did you ever find the solution to this problem, our app just started having the same issue and we can’t get it figured out