I am trying to interact with SUMO via MATLAB according to script here.
At line 43, the MATLAB command is
system([\'sumo-gui -c \' \'\"\' scenarioPath \'
Matlab is messing with the LD_LIBRARY_PATH when you use the standard matlab script located in the bin dir of the matlab installation. Try starting bin/<arch>/MATLAB (in my case bin/glnxa64/MATLAB) directly.