I have just used the Mendix 6.6.0 version and I want to make an unversioned packaged to test if my project will work correctly. However, I get the error that the widgets fail to build. When I run the check which widgets failed to build, I get a list of all my widgets. these widgets are all 6.5.0 compatible so it looks like a very bad bug.
Does anyone else have the same problem.
Created a support ticket [466495]