Graph Viewer "Host must be specified" issue

hello, i'm having some issues with the XProf Graph Viewer. I'm on xprof 2.21.3. here's the error: ``` There was an error in the requested URL /data/plugin/profile/data?run=2026_01_09_18_38_13&tag=graph_viewer&host=&graph_type=xla&module_name=jit__unstack(2120)&type=short_txt&show_metadata=false. message: Http failure response for http://localhost:8791/data/plugin/profile/data?run=2026_01_09_18_38_13&tag=graph_viewer&host=&graph_type=xla&module_name=jit__unstack(2120)&type=short_txt&show_metadata=false: 500 INTERNAL SERVER ERROR status: 500 statusText: INTERNAL SERVER ERROR error: Host must be specified for tool graph_viewer in run 2026_01_09_18_38_13 ``` but my browser has this URL, which has both `;host=ip-10-0-0-246` and `&host=ip-10-0-0-246` ``` http://localhost:8791/data/plugin/profile/graph_viewer;run=2026_01_09_18_38_13;tag=graph_viewer;host=ip-10-0-0-246;moduleName=jit__unstack%282120%29?run=2026_01_09_18_38_13&tag=op_profile&host=ip-10-0-0-246 ``` any suggestions for things i can try?