Deleted (razor tool) footage keeps showing in my exported media file

Dear community,

I keep having the same problem. Deleted footage from the timeline is showing up in my export. The completed edited video looks all fine when I play it in adobe premiere pro itself, but when I export deleted corrupt footage keeps coming back. I already spent like 30 hours looking for a solution (deleting the cache files, rendering, export with and without previews etc etc).

When I chop the export in 25x pieces of a minute, the total video is about 25 min long, I dont have the problem. However, if I then add the chopped video piecesa back together it for some reason also doesnt make transition smoothly. Plus, this shouldn't be necessary. It should be able to export the whole 25 min without any issue.

I already cut away more and more footage (in order to circumvent any lack of information at the tails of the clip), but the deleted footage (where it clip freezes) keep showing up. I keep cutting away more and more but it keeps adding it back on. I already deleted 15 sec on the timeline, but the 15 sec are added back on in the export.

All the clips are recorded in 30f/s, and the sequence settings are also at 30f/s. 

It is just weird that corrupted footage keep showing up. Any help would be much appreciated.

Thanks in advance,

Yuri