Hi guys,
For several weeks we had a BIG issue with the web client.
If you have some calculations used as dataproviders on some forms and if in those calculations you use a relation that is based on a global, and if you set that global in the calculation things WILL go wrong. Not always BUT sometimes they will go wrong: that form will not load.
So pay attention to this. This occurred in 5.2.7.
Maybe this will help someone!