TUFLOW Message 2204
ERROR 2204 - Could not assign ISIS unit node to 2D HX cell. Check that HX line is not also connected to TUFLOW 1D Node.
TUFLOW could not connect the HX cells to the ISIS unit. This may occur if the HX line is already connected to an ESTRY 1D channel
Check the connectivity of the HX line. Ensure that the HX is either connected to an ESTRY 1D channel with CN lines or an ISIS not directly or with an X connector.