RichWidget fails to format text in view mode
This can also be seen with Kupu editor which doesn't work propeply. The formatting code isn't present at view mode, but it's still displayed in edit mode.
You have upgraded your Plone, but didn't run portal_migration migration tool. If I recall correctly, this was between Plone 2.1.1 and Plone 2.1.2.
PortalTransforms is reinstalled and there is some changes to transform code for HTML.
Run migration tool. Back up Data.fs before that.