I'm experiencing issues when exporting my INDD-file to JPEG. It seems like the export process adds a thin, black line to the right side of the document that is not supposed to be there. Worked with InDesign for many years and never experienced anything like it, must be a bug. You don't notice this effect if you'll just use the image to upload it towards a transparent background or look at it on the screen.

However, I'm designing posters and when sending these exported JPEGS to my printing house, they will add a frame of one additional centimetre for the printing process. Then all of a sudden there's a tiny, black line coming from nowhere. I've gone through every setting I can trying to remove this but it's just impossible. Please look into this! Screenshot attached.