Random crashes on switching between tables.

Crash log:

date/time : 2016-09-27, 13:05:48, 14ms computer name : XXX user name : XXX <admin> registered owner : Admin / XXX operating system : Windows 7 x64 Service Pack 1 build 7601 system language : Russian system up time : 7 days 18 hours program up time : 3 days 6 hours processors : 8x Intel(R) Core(TM) i7-4770 CPU @ 3.40GHz physical memory : 612/16326 MB (free/total) free disk space : (C:) 358.09 MB display mode : 1920x1080, 32 bit process id : $48a8 allocated memory : 125.86 MB largest free block : 8184.26 GB executable : heidisql.exe exec. date/time : 2016-09-24 06:11 version : 9.3.0.5119 compiled with : Delphi XE5 madExcept version : 4.0.12 callstack crc : $c4aef423, $6a8104af, $6a8104af exception number : 3 exception class : EAccessViolation exception message : Access violation at address 000007FED0950DC2 in module 'libmysql.dll'. Read of address 0000000000000008.

main thread ($3820): 7fed0950 libmysql.dll mysql_ping 00a9318f heidisql.exe dbconnection 2236 +2 TMySQLConnection.Ping 00c3d4db heidisql.exe Main 4826 +9 TMainForm.DataGridBeforePaint 008dff09 heidisql.exe VirtualTrees 19214 +2 TBaseVirtualTree.DoBeforePaint 008f958a heidisql.exe VirtualTrees 30013 +5 TBaseVirtualTree.PaintTree 008eaa47 heidisql.exe VirtualTrees 23549 +23 TBaseVirtualTree.Paint 006a5666 heidisql.exe Vcl.Controls TCustomControl.PaintWindow 0069c413 heidisql.exe Vcl.Controls TWinControl.PaintHandler 0069d2af heidisql.exe Vcl.Controls TWinControl.WMPaint 006a55f8 heidisql.exe Vcl.Controls TCustomControl.WMPaint 008dc4a1 heidisql.exe VirtualTrees 17412 +8 TBaseVirtualTree.WMPaint 0040cb1e heidisql.exe System TObject.Dispatch 00694ab3 heidisql.exe Vcl.Controls TControl.WndProc 0069c17e heidisql.exe Vcl.Controls TWinControl.WndProc 008ef34e heidisql.exe VirtualTrees 25273 +32 TBaseVirtualTree.WndProc 0069b3ba heidisql.exe Vcl.Controls TWinControl.MainWndProc 005dbcf3 heidisql.exe System.Classes StdWndProc 774bba71 ntdll.dll KiUserCallbackDispatcher 77386e97 USER32.dll DispatchMessageW 008145cf heidisql.exe Vcl.Forms TApplication.ProcessMessage 00814613 heidisql.exe Vcl.Forms TApplication.ProcessMessages 00a87c7f heidisql.exe dbconnection 933 +104 TPlink.Connect 00a8ce92 heidisql.exe dbconnection 1663 +46 TMySQLConnection.SetActive 00a931b5 heidisql.exe dbconnection 2240 +6 TMySQLConnection.Ping 00a9360e heidisql.exe dbconnection 2330 +10 TMySQLConnection.Query 00aaf964 heidisql.exe dbconnection 5368 +3 TMySQLQuery.Execute 00a9f18b heidisql.exe dbconnection 3427 +20 TDBConnection.GetResults 00aa0aac heidisql.exe dbconnection 3732 +1 TDBConnection.GetVar 00a94dc7 heidisql.exe dbconnection 2619 +14 TMySQLConnection.GetCreateCode 00ab80d9 heidisql.exe dbconnection 6986 +2 TDBObject.GetCreateCode 00c50149 heidisql.exe Main 7963 +60 TMainForm.DBtreeFocusChanged 008e1630 heidisql.exe VirtualTrees 19729 +2 TBaseVirtualTree.DoFocusChange 008e82b0 heidisql.exe VirtualTrees 22477 +262 TBaseVirtualTree.HandleMouseDown 008dbca5 heidisql.exe VirtualTrees 17178 +6 TBaseVirtualTree.WMLButtonDown 0040cb1e heidisql.exe System TObject.Dispatch 008ef2b8 heidisql.exe VirtualTrees 25260 +19 TBaseVirtualTree.WndProc 0069b3ba heidisql.exe Vcl.Controls TWinControl.MainWndProc 005dbcf3 heidisql.exe System.Classes StdWndProc 77389925 USER32.dll DispatchMessageW 008145cf heidisql.exe Vcl.Forms TApplication.ProcessMessage 00814643 heidisql.exe Vcl.Forms TApplication.HandleMessage 00814b2f heidisql.exe Vcl.Forms TApplication.Run 00c84437 heidisql.exe heidisql 79 +24 initialization 772659bb kernel32.dll BaseThreadInitThunk

That crash happens on libmysql.dll/mysql_ping. Please install the latest 32/64bit installer, not just the latest built heidisql.exe. That way, you get updates for libraries as well.

Will try :) thx