rgbdslamv2 segfault shortly after startup

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rgbdslamv2 segfault shortly after startup . Trace below generated via xterm gbd in launch file. System comes up looks ok starts to run then sefaults during display. Tried running headless with same results. Any idea what is causing this. I am running ubuntu16.

[ INFO] [1509375314.160750258, 1305033527.867128886]: RANSAC found a valid transformation with 298 inliers matches with average ratio 0.097409
[ INFO] [1509375314.160762053, 1305033527.867128886]: Returning Valid Edge
[ INFO] [1509375314.160819035, 1305033527.867128886]: Result of comparison 0: 
[ INFO] [1509375314.160848306, 1305033527.867128886]: Rotation: 0.53, Distance:  0.009m
[ INFO] [1509375314.160866383, 1305033527.867128886]: Rotation: 0.53, Distance:  0.009m
[ INFO] [1509375314.160911549, 1305033527.867128886]: Added Edge between 0 and 1. Inliers: 298
[ INFO] [1509375314.160940682, 1305033527.867128886]: Adding node with id 1 and seq id 1 to the graph
[ INFO] [1509375314.160960472, 1305033527.867128886]: create cloud 1 1 0
[ INFO] [1509375314.166014054, 1305033527.867128886]: No change to renderer skip (1).
[ INFO] [1509375314.166122771, 1305033527.867128886]: Added Node, new graphsize: 2 nodes
[ WARN] [1509375314.166280803, 1305033527.867128886]: Loop Closures: 0, Sequential Edges: 1
[ WARN] [1509375314.166301659, 1305033527.867128886]: Starting Optimization
[ INFO] [1509375314.166319108, 1305033527.867128886]: Added, Camera Pose Graph Size: 2N/1E, Duration: 0.008553, Inliers:  298
[ WARN] [1509375314.166373657, 1305033527.867128886]: Optimization with 2 cams, 7526752397134135296 nodes and 3403715683584009314 edges in the graph

Thread 44 "Thread (pooled)" received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x7fff467fc700 (LWP 2496)]
0x00007ffff75552c7 in g2o::OptimizationAlgorithmLevenberg::computeLambdaInit() const ()

after segfault execution of bt

bt

#0  0x00007ffff75552c7 in g2o::OptimizationAlgorithmLevenberg::computeLambdaInit() const () from /home/rjn/catkin_ws/src/rgbdslam/Thirdparty/g2o/install/lib/libg2o_core.so
#1  0x00007ffff75556fa in g2o::OptimizationAlgorithmLevenberg::solve(int, bool) () from /home/rjn/catkin_ws/src/rgbdslam/Thirdparty/g2o/install/lib/libg2o_core.so
#2  0x00007ffff754d0c7 in g2o::SparseOptimizer::optimize(int, bool) () from /home/rjn/catkin_ws/src/rgbdslam/Thirdparty/g2o/install/lib/libg2o_core.so
#3  0x0000000000581d7c in GraphManager::optimizeGraphImpl(double) ()
#4  0x000000000058f2d9 in QtConcurrent::RunFunctionTask<double>::run() ()
#5  0x00007fffee5a72d3 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fffee5aa7be in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fffefac56ba in start_thread (arg=0x7fff467fc700) at pthread_create.c:333
#8  0x00007fffeda883dd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109