view from under landscape when movie render out

i have some shoots on master level squence when i play it on editor everything looking same how i set key frame for cinecamera actor (no problem ) .but when i render out them after 1.shoot playing, its showing some weird scenes under landscape .After 2-3 seconds later skiping midle of 2.shoot then 3.is normal ,4. shoot is normal .when it come to play 5 .shoot, after 2-3 sec going under landscape again .I dont have any key frames where scenes is showing me .I didn’t put any camera or set key frame there ,i dont know why its happening but cant find solution for fix it .
also on preview my lighting is ok but when render out movie its geting darker .I read about smoething about it edit>project settings>general>rendering >defuelt setting >disable aouto exposure .i did it but it still darker unfortunality .
waiting for your responses, My english not well enough .If you need more detailsto understand my problem please let me know