Now, with the use of r49 I can't preview the project I was working on in the earlier versions (either in http and file mode).
Even after saving my project to a new folder in r49.
I opened a new project, previewed it with no problem.
I even copied the preview files (no images there by the way) from the temporary folder to a folder of my local server (wampserver 2.0) and tried them from here, the preview does not work.
On previous versions of c2, the previewing always worked.
This even more serious. Even on export of my project it can't appear in my browser in the final index.html :/
Note: I renamed the project first. But even with the "original" project from r48, preview does not work.
I'm trying to create a new project/copy objects and events there to see if it changes anything.