RE: SSRS Report doesn't show up parameters dialog box not showing up.
Hi,
Things you must remember while working SSRS reports whether it is customized or New reports from scratch.
-->Try to put static debugger (write breakpoint; in your code)in DP Class processReport() method.
--> Run the report from visual studio (go to Microsoft dynamics AX Configuration Utility, select developer tab, and select check boxes provided) and debug it.
--> Stress (While Debugging) on query in processReport() methods because that could also be one of the reason for your problem.
--> Put static debugger in insertIntoTempTable() as well to check whether data is populating in temp table or not, change TableType as regular.
--> Refresh Report Report Server in Tools-> Caches ->Refresh report server
--> Delete the Report from report Server and redeploy it.
--> Generate Incremental Cil and Full Cil generation (Recommended)
Note: This is as per AX 2012 and higher versions