WebParts not rendering after upgrading to EPiServer CMS 5 R2
Question
After upgrading my Web site to EPiServer CMS 5 R2 the Web Parts from the R1 site are lost - what should be done?
Answer
Install the hotfix for Web Parts - when upgrading to EPiServer CMS 5 R2.
This problem will be addressed in the upcoming release of EPiServer CMS 5 R2 SP1.