Model averaging in PRESENCE

Hi
Apologies if this topic has been discussed before (I could not locate it on the forum though). I'm trying to estimate occupancy and 8 of my candidate covariate models have deltaAIC <2. I want to use the model-averaging option available in PRESENCE v5.9 to get at final estimates of site-specific PSI values. However, when I try doing this, PRESENCE is generating a blank text file. I tried changing location of project and also tried creating new project. But the modavg text file is still blank. I have used mod-avg on PRESENCE before and it has worked. Not sure what the issue is now.
Arjun
Apologies if this topic has been discussed before (I could not locate it on the forum though). I'm trying to estimate occupancy and 8 of my candidate covariate models have deltaAIC <2. I want to use the model-averaging option available in PRESENCE v5.9 to get at final estimates of site-specific PSI values. However, when I try doing this, PRESENCE is generating a blank text file. I tried changing location of project and also tried creating new project. But the modavg text file is still blank. I have used mod-avg on PRESENCE before and it has worked. Not sure what the issue is now.
Arjun