[galaxy-dev] Web links not leading to appropriate location anymore.

Hello, We're experiencing a major issue in the web application and don't know where to look for a potential solution: Whichever link we click on it always brigs us back to the welcome page (galaxy/root). There are a few exceptions to that: - saved histories, saved datasets and api key in the User menu that lead to the appropriate pages - the tools on the left: even better, they open an new full set of Galaxy's frames in the middle frame. We tried reverting to the last pull, restarting Apache, checking the Apache config file, checking the rights in the static directory... and we still do not have the least idea of where to look. Does anyone have an idea, a lead to explore? Thanks, L-A