3277966 - SPROXY UI hangs when expanding the navigation tree

You have connected the ABAP's SPROXY Proxy Generation tool in your backend ABAP Application System with the PI Java ESR design-time tool in your central PO system via the standard SM59 HTTP destination SAP_PROXY_ESR.
On the left-hand navigation tree expanding the SWCV the UI hangs.
However every connection check test for SPROXY shows that everything is fine and properly configured.

• PI Release Independent
• SAP NetWeaver
• SAP Process Integration

Process Integration 7.0, PI 7.0, PI 7.01, PI 7.02, Process Integration 7.10, PI 7.10, Process Integration 7.11, PI 7.11, Process Integration 7.30, PI 7.30, Process Integration 7.31, PI 7.31, Process Orchestration 7.40, PI 7.40, PO 7.40, Process Orchestration 7.50, PI 7.50, PO 7.50, NetWeaver, XI, SPROXY, hangs, SAP_PROXY_ESR, UI-tree, Java ESR , KBA , BC-XI-IBD-INF , Interfaces , Problem