Can you produce a more extensive backtrace? It looks similar to an existing bug, but I can't tell because it's very short.

This is the message that is displayed in the dialog box when the crash occurs.
Unknown account id 'A000008' in file /build/buildd/kmymoney-4.6.1/kmymoney/mymoney/storage/mymoneyseqaccessmgr.cpp line 132

back trace with debugging symbols

Thread 3 (Thread 0x7fad989ac700 (LWP 4097)):
#0  0x00007fadabfa7b03 in poll () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007fada7617036 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fada761749a in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fad989b198b in ?? () from /usr/lib/x86_64-linux-gnu/gio/modules/libdconfsettings.so
#4  0x00007fada76389e5 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fadaecc5e9a in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#6  0x00007fadabfb34bd in clone () from /lib/x86_64-linux-gnu/libc.so.6
#7  0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7fad93fff700 (LWP 4098)):
#0  0x00007fadabfa7b03 in poll () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007fada7617036 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fada761749a in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fad9f09a406 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#4  0x00007fada76389e5 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fadaecc5e9a in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#6  0x00007fadabfb34bd in clone () from /lib/x86_64-linux-gnu/libc.so.6
#7  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7fadb18cc780 (LWP 4095)):
[KCrash Handler]
#6  0x00007fadabef7445 in raise () from /lib/x86_64-linux-gnu/libc.so.6
#7  0x00007fadabefabab in abort () from /lib/x86_64-linux-gnu/libc.so.6
#8  0x00007fadac84569d in __gnu_cxx::__verbose_terminate_handler() () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6
#9  0x00007fadac843846 in ?? () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6
#10 0x00007fadac843873 in std::terminate() () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6
#11 0x00007fadac84396e in __cxa_throw () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6
#12 0x0000000000456ed8 in main (argc=1, argv=0x7fffb89cac88) at /build/buildd/kmymoney-4.6.1/kmymoney/main.cpp:185

output when launched from gdb

GNU gdb (Ubuntu/Linaro 7.4-2012.04-0ubuntu2) 7.4-2012.04
Copyright (C) 2012 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
and "show warranty" for details.
This GDB was configured as "x86_64-linux-gnu".
For bug reporting instructions, please see:
<http://bugs.launchpad.net/gdb-linaro/>...
Reading symbols from /usr/bin/kmymoney...Reading symbols from /usr/lib/debug/usr/bin/kmymoney...done.
done.
(gdb) run
Starting program: /usr/bin/kmymoney 
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[New Thread 0x7fffdf094700 (LWP 4250)]
[New Thread 0x7fffde893700 (LWP 4251)]
[New Thread 0x7fffdd422700 (LWP 4252)]
void DBusMenuExporterPrivate::addAction(QAction*, int): Already tracking action "Open ledger" under id 48 
kmymoney(4240)/kdecore (KPluginInfo) KPluginInfo::kcmServices: found 1 offers for "Print check"
kmymoney(4240)/kdecore (KPluginInfo) KPluginInfo::kcmServices: found 0 offers for "KBanking"
kmymoney(4240)/kdecore (KPluginInfo) KPluginInfo::kcmServices: found 0 offers for "KMyMoney OFX"
kmymoney(4240)/kdecore (KPluginInfo) KPluginInfo::kcmServices: found 0 offers for "csvimport"
kmymoney(4240)/kdecore (KPluginInfo) KPluginInfo::kcmServices: found 0 offers for "Reconciliation report"
kmymoney(4240)/kdecore (KPluginInfo) KPluginInfo::kcmServices: found 1 offers for "iCalendar"
KMyMoney printcheck plugin loaded
kmymoney(4240)/kdecore (KConfigSkeleton) KCoreConfigSkeleton::writeConfig:
QFSFileEngine::open: No file name specified
7:2012/09/08 12-54-06:aqbanking(4240):started
KMyMoney kbanking plugin loaded
KMyMoney ofximport plugin loaded
KMyMoney csvimport plugin loaded
KMyMoney reconciliation report plugin loaded
KMyMoney iCalendar plugin loaded
reading file
start parsing file
startDocument
reading accounts
reading transactions
reading securities
reading currencies
reading prices
reading reports
endDocument
QPainter::begin: Widget painting can only begin as a result of a paintEvent
QPainter::translate: Painter not active
QPainter::setClipRect: Painter not active
Qt has caught an exception thrown from an event handler. Throwing
exceptions from an event handler is not supported in Qt. You must
reimplement QApplication::notify() and catch all exceptions there.

terminate called after throwing an instance of 'MyMoneyException*'

Program received signal SIGABRT, Aborted.
0x00007ffff25df445 in raise () from /lib/x86_64-linux-gnu/libc.so.6
(gdb)

Try to run KMyMoney with option --nocatch to get more elaborate information about the exeception. I am not sure if it helps in this scenario.

Running with --nocatch didn't show anything new.

This problem seems to be unique to my data file.

I exported the data to a sqllite database and in the kmmAccounts table the "A000008" record is missing. I'm guessing this is meant to be a list of sequential numbers for each category. I have A00001 through to A000040, and A00008 is missing.

have you run a consistency check?

The consistency check says everything is ok.

Please read http://kmymoney.org/kde4/online-manual/details.formats.compressed.html and decompress your data file. Then use your favorite editor to see where the A000008 reference exists. Please report it back here (maybe with a few lines in front and some behind the actual occurrence so that we can spot the context but make sure to replace any private information with '#' for digits and 'X' for alpha chars).

A000008 & A000014, seemed to be suffering from the same problem


** orig.kmy	2012-09-09 18:32:09.000000000 +1000
--- modified.kmy	2012-09-09 19:11:38.382677111 +1000
***************
*** 1378,1386 ****
     <ACCOUNT budgetsubaccounts="0" id="A000007" budgetlevel="monthly">
      <PERIOD amount="450/1" start="2012-01-01"/>
     </ACCOUNT>
-    <ACCOUNT budgetsubaccounts="0" id="A000008" budgetlevel="monthly">
-     <PERIOD amount="450/1" start="2012-01-01"/>
-    </ACCOUNT>
     <ACCOUNT budgetsubaccounts="0" id="A000010" budgetlevel="monthly">
      <PERIOD amount="120/1" start="2012-01-01"/>
     </ACCOUNT>
--- 1378,1383 ----
***************
*** 1393,1401 ****
     <ACCOUNT budgetsubaccounts="0" id="A000013" budgetlevel="monthbymonth">
      <PERIOD amount="1600/1" start="2012-03-01"/>
     </ACCOUNT>
-    <ACCOUNT budgetsubaccounts="0" id="A000014" budgetlevel="monthly">
-     <PERIOD amount="200/1" start="2012-01-01"/>
-    </ACCOUNT>
     <ACCOUNT budgetsubaccounts="0" id="A000015" budgetlevel="monthbymonth">
      <PERIOD amount="422/1" start="2012-02-01"/>
      <PERIOD amount="422/1" start="2012-05-01"/>
--- 1390,1395 ----

*** This bug has been marked as a duplicate of bug 290737 ***