I verified that I did not have a weight class filter in place and that "owned" was selected in the top drop down. Further I verified that indeed the mechs available contained a smattering of my owned mechs across all weight classes, but was only showing less than half of the ones I owned.
The mech bays owned and empty numbers were also correct. Logging out and then in again seemed to resolve the issue.
Edited by Phaeric Cyrh, 22 October 2014 - 05:10 AM.