We recently migrated our Powerbuilder application to PB
11.5. Since then, the application will randomly just
"disappear" and give no error messages.

We have turn on the PB_HEAP_DEBUG, as this was a suggestion
that may help the situation. It seems to have helped some,
but still happens. The last time it happened, I got this in
the Heap.log file. Anyone know what that means, or how to
correct it? I couldn't find anything on the web.

PB Heap Manager Error:

adopt: parent block does not have child header

----------------- Block Header (Debug)

03F96A94: D8B13912DC396500E4396500F0396500FC396500
ر9.Ü9e.ä9e.ð9e.ü9e.
03F96AA8: 00000000000000009835120400000000DE020000
........5......Þ...
03F96ABC: 00030000000000000000000000000000000D0070
..................p
03F96AD0: 00000000
...

----------------- User Buffer

03F96AD4: 5C39F5033A0400000100BC65F903900000000100
\9õ.:.....¼eù.......
03F96AE8: 787EF5031C00000001006CC4EE03140000000100
x~õ.......lÄî.......
03F96AFC: F80B1204900000000100000D1204900000000100
ø...................
03F96B10: 080E12043C0100000100080FF5030A0000000100
...<.......õ.......
03F96B24: 98D3F5033C00000001005423F5031C0000000100
.Óõ.<.....T#õ.......
03F96B38: 04B3ED030400000001001C87EE03180000000100
.³í.........î.......
03F96B4C: 08EFF5030C0000000100A4F5F5030C0000000100
.ïõ.......¤õõ.......
03F96B60: EC00F5031C00000001008C57F903040000000100
ì.õ........Wù.......
03F96B74: 9CA8EE031C0000000100C48CED03080000000100
.¨î.......Ä.í.......
03F96B88: F4CBEE031C0000000100C043F903080000000100
ôËî.......ÀCù.......
... [534 bytes omitted]

----------------- Guard Suffix

03F96DB2: D8B13912D8B13912
ر9.ر9.

----------------- Data Type and Source File Information

03F96AD4 parent void* (size 734, file file?, line 0)
_______________________________________________________________________________

Now checking all other heap blocks...

Please check usage of heap blocks allocated at:

file: file?
line: 0