I originally submitted this as a reply to an earlier thread regarding DSv9 crashes but it seems to have gone unnoticed so I am repeating it as the problem still exists in DSv11.
See https://www.rs-online.com/designspark/ds-9-crash-history.
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After several months, today I returned to using DS. (Now v11).
I immediately encountered a bug:-
I started a new design project and attempted to create a new schematic symbol as nothing existed in any libraries and nothing was available from SnapEda.
After about an hour's work editing the symbol, DS crashed without warning. A whole evening's work lost.
This is the same problem I experienced with DS9. The exception code is the same: 0xc0000005 (memory access violation).
The bug has not been fixed in v11.
Here is the Event Viewer Log.
Faulting application name: DesignSpark.exe, version: 26.0.2.0, time stamp: 0x64906a01
Faulting module name: mfc140.dll, version: 14.32.31326.0, time stamp: 0xf5000d2e
Exception code: 0xc0000005
Fault offset: 0x0024157d
Faulting process ID: 0x3ee4
Faulting application start time: 0x01da4bd75a24d672
Faulting application path: C:\Program Files (x86)\DesignSpark\DesignSpark PCB 11.0\DesignSpark.exe
Faulting module path: C:\WINDOWS\SYSTEM32\mfc140.dll
Report ID: 7311e1cb-f3b6-4379-b006-ca4d6314719d
Faulting package full name:
Faulting package-relative application ID:
The problem occurs when making a sequence of edits on a symbol library file.
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The crash is not easily repeatable. I suspect it's caused by memory leaks.