Erik Kostson
Ansys Employee

Have in mind that this is a forum, and not a support platform say like one would have for supported users (like ansys customer portal) - if you have a commercial licence please use the customer portal to submit a support request - also have in mind this forum does not have any "support" engineers (as this is not a standard support platform, but a forum - there are some employees from ansys that do contribute sometimes here, and when they have time, to the discussions, but the forum is really for the members to help each other.

As for your comment, during assembling of the global matrix any standard FEA software process probably/normally condenses out the fixed dof, so one would expect that the matrix would be reduced like you see.

Best of luck