I have this problem, located the FBW folder, deleted it, removed all Liveries regarding the A320 from the community folder, re-installed the FBW A320 Neo stable version 0.7.0 and...invisible plane! Like you I find it, can select it, just with 320Neo native livery + FBW's own- and load it and...its invisible still. I see the green and red marking lights from the wings... I am running sim version 1.19.9.0