Problem with exporting track to mixdown i don't get what i hear in Cubase

I have a very big problem with my Cubase 9.530 pro. When I expose the tracks to one wav file, when I listen to it, listen to random volume jumps on the mix in different places, this is very frustrating. Is soo much diffrent when i listen it in Cubase and in Wav. Can anybody help. Please! Track is different after export it looks like have some random gates at the end. I use only audio tracks not VST Instruments one effect reverb but even without effect its not even similar after export to orginal sound in Cubase. I read many about it people tell that they have the same problem but cant solve it. Some peple tell that this people don’t know how to export wave. I want effect what i hear i get and i didnt get it. If it’s some bug in program Cubase is not a profesional Daw its toy for childeren. I wait for respond popole who are much more expireinced please help even if this topic was in this forum I really dont know what I do wrong or this is so hudge bug in this daw… I use the same settings in project setup and in export 44.1/ 16 bit.Sorry for mistakes and will be heppy if enyone can solve or help solve this problem.

Sorry I can’t write in German language.

Sorry I can’t write in German language.

then post in englisch Forum https://www.steinberg.net/forums/viewforum.php?f=202