code not working for N_quad != N_LGL for certain arrayfire versions

### Commit : 8759c941efa27720fb44f7efafe16182b6fc9f72

### Issue
The code doesn't give desired outputs for evolution of the 1D wave for N_LGL != N_quad for arrayfire v3.5 and above, however it works for arrayfire v3.4,  This difficulty is also being faced during calculation of 2D volume integral term.