[FONT="]Avoid using the word LIST with the SELFWEIGHT command and use only SELFWEIGHT Y -1[/FONT]
[FONT="]If the model contains any of the following data, it could trigger that Note.[/FONT] [FONT="]a) MEMBER TENSION
b) MEMBER COMPRESSION
c) SPRING TENSION
d) SPRING COMPRESSION
e) PLATE MAT with the COMPRESSION option
f) ELASTIC MAT with the COMPRESSION option[/FONT] [FONT="]In all these cases, the program has to use an iterative method to find out which member or support spring should be switched off and which ones need to be treated as active. If the components of the structure that are active at the start of an iteration are the same as those at the conclusion of the iteration, convergence is said to have been attained.[/FONT] [FONT="]The message is reported as a Note because it enables us to understand how many iterations it took to attain convergence for a load case. It is not indicative of anything wrong.While stabilizing load cases like gravity alone can be solved usually in just one iteration, when they are combined with destabilizing load cases like seismic or wind, more than one iteration may be needed.