Hi,
I'm encoutering something strange,
when consulting the diary (month view), if I try to click the weeks numbers in order to see the "week view" of my diary it doesn't work properly.
For instance :
Admitting I want to see the week 17 of my diary wich includes 21 to 26 of april

But here is the result I get :
On top, the right week number is displayed but not the content corresponding to this week.

We can be sure about this simlply by refreshing this display by triggering the filters. Then we get the correct content displayed :

Regards
Issue recorded at Ticket #4627
In fact I could not reproduce the behavior you face.
Do you have any error logged in projeqtor log file or in browser console ?
Could you please try and reproduce use case on Demo and tell us parameters of the tests (connected user, name of resource of the diary) ?
Thanks.