It would be great if TMS allows changing the cost model regardless of the number of cost bands. Currently when we change from the default cost model to alternative cost model (i.e. excluding 100% match review) in TMS, TMS cannot handle switching between 5 cost bands model to 4 cost bands model (in the alternative cost model, 100% match is set 0.00 USD thus makes one less cost band) and calculation becomes corrupt.