DVD::rip crash before preview

I'm trying to rip a chapter of a DVD and every time I get the same error.  
It goes through RIP Title OK, but at the generate preview image step it  
crashes. On the Clip & Zoom tab, if I hit Grab Image with frame 1  
specified, I get this error:

Job 'Grab preview - title #3, chapter #3' failed with error message:
Command exits with failure code:
Command: mkdir -m 0775 /tmp/dvdrip30834.ppm; cd /tmp/dvdrip30834.ppm;  
execflow transcode -H 10 --print_status 25 -o snapshot -y ppm,null -x  
vob,null -i \/home\/KirkD\/\.dvdrip\-data\/test\/vob\/003\-C003\/ -c 1-2 -L  
0 && execflow convert -size 720x480 /tmp/dvdrip30834.ppm/snapshot*.ppm  
/home/KirkD/.dvdrip-data/test/tmp/test-003-preview-orig.jpg && execflow  
convert -size 720x480 /tmp/dvdrip30834.ppm/snapshot*.ppm  
gray:/home/KirkD/.dvdrip-data/test/tmp/test-003-preview-orig.raw && rm -r  
/tmp/dvdrip30834.ppm && echo EXECFLOW_OK

Output: syncinfo write error (0)
write: Broken pipe
syncinfo write error (0)

lots and lots of those Broke pipe and syncinfo error lines, then:

[transcode] (probe) suggested AV correction -D 0 (0 ms) | AV -11 ms | -11 ms
[transcode] auto-probing source /home/KirkD/.dvdrip-data/test/vob/003-C003/  
(ok)
[transcode] V: import format | MPEG-2 (V=vob|A=null)
[transcode] V: AV demux/sync | (2) initial MPEG sequence / enforce frame  
rate
[transcode] V: import frame | 720x480 1.50:1 encoded @ 4:3
[transcode] V: bits/pixel | 0.217
[transcode] V: decoding fps,frc | 23.976,1
[transcode] V: Y'CbCr | YV12/I420
[transcode] A: import format | 0x2001 AC3/A52 [48000,16,2] 192 kbps
[transcode] A: export | disabled
[transcode] V: encoding fps,frc | 23.976,1
[transcode] A: bytes per frame | 8008 (8008.000000)
[transcode] A: adjustment | 0@1000
[transcode] A: AV shift | -11 ms [ 0 (A) | -11 ms ]
[transcode] V: IA32/AMD64 accel | sse2 (sse2 sse mmxext mmx asm C)
[transcode] V: IA32/AMD64 accel | using sse memcpy
[transcode] V: video buffer | 10 @ 720x480
[import_vob.so] tccat -i "/home/KirkD/.dvdrip-data/test/vob/003-C003/" -t  
vob -d 0 -S 0 | tcdemux -s 0x80 -x mpeg2 -S 0 -M 2 -f 23.976024 -P  
/tmp/filexmEgDS -d 0 | tcextract -t vob -a 0 -x mpeg2 -d 0 | tcdecode -x  
mpeg2 -d 0 -y yv12


clean up | frame threads |sh: line 1: 31151 Segmentation fault execflow  
transcode -H 10 --print_status 25 -o snapshot -y ppm,null -x vob,null -i  
\/home\/KirkD\/\.dvdrip\-data\/test\/vob\/003\-C003\/ -c 1-2 -L 0

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Any help is appreciated!!