3805450 - WebGUI: Dialog popup buttons not responding during processing

• When processing transactions in SAP GUI for HTML (WebGUI) or SAP Fiori Launchpad (FLP), a popup or dialog window appears during execution, and the buttons within the popup (e.g., OK, Cancel) as well as the Enter key are unresponsive.
• The screen freezes at the dialog and cannot proceed.
• The same processing completes successfully when executed using SAP GUI for Windows.
• For example: the issue occurs in the following observed scenarios:
  1. Lockbox item processing via Fiori Tile "Reprocessing Incoming Checks – From Lockbox" (dialog stops on the Coding Block screen)
  2. Batch Input session processing in transaction SM35 via Fiori Launchpad (dialog "Batch Input Fields" requesting OK code becomes unresponsive)
  3. Batch Input processing in SM35 via WebGUI where error/information message popups do not respond to button clicks

"Image/data in this KBA is from SAP internal systems, sample data, or demo systems. Any resemblance to real data is purely coincidental."

• ABAP platform
• SAP GUI for HTML (WebGUI)
• SAP Fiori Launchpad (FLP)

SM35, batch input, overlapping popup, popup buttons, OK not responding, Cancel not responding, Enter not responding, WebGUI, SAP GUI for HTML, Unified Rendering, UR patch, cumulative patch 2609, kernel patch, okcode /00, display errors only, Fiori Launchpad, foreground mode, dialog mode, lockbox, screen freezes, =ENTE, Batch Input Fields dialog , KBA , BC-FES-WGU , SAP GUI for HTML , BC-FES-ITS , SAP Internet Transaction Server , Problem