0005492: Application freezes during FormClose in RadioStation.BroadCast

ID	Project	Category	View Status	Date Submitted	Last Update
0005492	CaseTalk Modeler	Other	public	2026-03-30 17:16	2026-03-30 17:43

Reporter	Marco Wobben	Assigned To	Marco Wobben
Priority	high	Severity	crash	Reproducibility	have not tried
Status	resolved	Resolution	fixed
Target Version	15.0	Fixed in Version	15.0

Summary	0005492: Application freezes during FormClose in RadioStation.BroadCast
Description	Application frozen during close. The main thread is stuck in ProcessPaintMessages called from TMainForm.ListenToRadio, which is being invoked as a RadioStation listener during BroadCast. The RadioStation.BroadCast was triggered by TMainForm.FormClose, causing a re-entrant call into ListenToRadio while the UI is processing paint messages. Call chain: ProcessPaintMessage (_SYSUTIL:294) ProcessPaintMessages (_SYSUTIL:312) TMainForm.ListenToRadio (MainFrmUnit:1805) TRadioStation.CallListener (RadioStation:724) TRadioStation.BroadCast (RadioStation:828) TMainForm.FormClose (MainFrmUnit:5810)
Tags	No tags attached.

CaseTalk Edition	Corporate

Marco Wobben 2026-03-30 17:43 administrator ~0005928	Fixed: added FApplicationClosing guard around Invalidate/ProcessPaintMessages in ListenToRadio (MainFrmUnit.pas). When FormClose broadcasts NRL_Shutdown, ListenToRadio was calling ProcessPaintMessages during application teardown, allowing re-entrant radio broadcasts and a freeze. Guard added: if not FApplicationClosing then begin Invalidate; ProcessPaintMessages; end.

Date Modified	Username	Field	Change
2026-03-30 17:16	Marco Wobben	New Issue
2026-03-30 17:16	Marco Wobben	View Status	public => private
2026-03-30 17:19	Marco Wobben	View Status	private => public
2026-03-30 17:19	Marco Wobben	Summary	Application freezes during FormClose in RadioStation.BroadCast (ProRail) => Application freezes during FormClose in RadioStation.BroadCast
2026-03-30 17:19	Marco Wobben	Description Updated
2026-03-30 17:19	Marco Wobben	Description Updated
2026-03-30 17:36	Marco Wobben	Assigned To	=> Marco Wobben
2026-03-30 17:36	Marco Wobben	Status	new => resolved
2026-03-30 17:36	Marco Wobben	Resolution	open => fixed
2026-03-30 17:36	Marco Wobben	Fixed in Version	=> 15.0
2026-03-30 17:43	Marco Wobben	Note Added: 0005928
2026-03-30 17:43	Marco Wobben	Target Version	=> 15.0