Logging Out after quit

Logging out after quit is this a bug? mojang? if i sign in and play, after i play i click Quit when im done playing, then if you Relaunch the launcher your account will be Logged Out, i click the Keep me login but its logging me out always 😞  please mojang is this a bug?  many players ask that too when other players are using cracked account like Altening and Mcleaks, altening is not a permanently alt it is expires only in 15 Mins. but it has a logging out bug then they create a new? alt? hopefully Minecraft / Mojang  can see this post and help me for a Better Minecraft Community <3 take a look of two Screen shoots Alt and Premium account it always logging out sad! fix please