Ansys APDL crashes by MATLAB

Dear All,

I am trying to run Ansys APDL through MATLAB by the following command:

system('"c:\Program Files\ANSYS Inc\v145\ANSYS\bin\winx64\ansys145" -b -i ansys_script.txt -o out.txt') ;

It worked before (some time ago), but I don't know why it has crashing now with the following error message:

Mechanical APDL program has stopped working

Problem signature:

Problem Event Name: APPCRASH

Application Name: ANSYS.exe

Exception Code: c00000fd

Exception Offset: 0000000006070807

After some tentatives, I tried to run the APDL by itself and some .dll files were missing. I found them in other directories inside of the own ANSYS folder and I put them in the folder that I am calling the executable apdl. It worked to run the APDL itself, but still has problems if I try to run it by MATLAB.

Anyone can help me with that?

Thank you very much,

Odilon.