Vasca kavat mods and upgrade not accessible

[GAPZEN]

I have upgrade mod in menu "upgrade" of vasca kavat. When ESc all mods from all builds have been removed and warning " Selected item has not yet been loaded. Please wait a moment and try again" appeared. I have exit , changed frame, played some other mission and come back. Mods were not in build so I put them back, I have decided to upgrade again the mod to see what will happened. As expected the same happened again. Mods gone and message warning showed.