Timesheet URL: specific week and view (filters)

Hi -

I am attempting to generate a hyperlink to a user's Timesheet which goes to a specific week as well as certain View.  I don't particularly need the View, but I require specific filters.

 The HTML I have so far is: 

<a href='https://app2.clarizen.com/Clarizen/TeamSpace/Timesheet?IGL=14&IGLP={ToString(WeekStart,'yyyy-MM-dd')};{GetRuntimeParameter(CurrentUser())}' target='_blank'>Week of {Left(ToString(WeekStart),10)}:</a>

WeekStart is a variable specifying the specific date.

Selecting the correct week is working, but I continue to get blank filters:

Example URL:  https://app.clarizentb.com/Clarizen/TeamSpace/Timesheet?IGL=14&IGLP=2019-02-17;#.#############.###########