Data divergence when use gaia

Hello [name removed],

I have calculated a hydrodynamic model which includes sediment transport. When I run the  model considering hydrodynamics alone with telemac2d, the results are stable and correct. However, when I incorporate sediment with gaia into the calculations, an unusually large value emerges during the initial computation stage, leading to divergence of the results. I have attached my computation file for reference.

2021_imp.cas (6.02 KB)
gaia2.cas (3.16 KB)