Have you tried to check response of Content Version - POST api once changing property value?

If not, try to check this one and let's see what happens

Hi Bihn, thanks for your reply and suggestion. I tried this and everything there looks correct there from what I can tell. 

I did notice something that might be able to help troublshoot.


We recently upgraded from Geta.SEO.Sitemaps to Geta.Optimizely.Sitemaps and I see this warning in the logs. The page Im having this issue with is using the PropertySEOSitemaps property from the newer .net core library so it should'nt be trying to create the PropertyData instance from  type Geta.SEO.Sitemap.... I think this might be related to the issue.   


When I created a new page there were no issues. Its only with the existing page with the older data and property mappings.

warn: EPiServer.Construction.Internal.PropertyDataFactory[0]
      Unable to create a PropertyData instance of Type: 'Geta.SEO.Sitemaps.SpecializedProperties.PropertySEOSitemaps' Assembly: 'Geta.SEO.Sitemaps'. Will fallback using the data type instead.

I updated this assembly in the db record but the issue still persists

Actually, Geta changes assembly name then namespace as well for new Optimizely Cms 12 version to Geta.Optimizely.Sitemaps. I think it is reason cannot create instance with Reflection for property data from your db with old assembly name. I think you need to do upgrade your db for this one as well