Issues with project on another computer

Help me please! I copied the project folder to another computer and it plays everything with a 15 minute offset. But the items are still in their actual bars. For example: when i start at marker 1, it plays the item that is placed 15 minutes after this marker. But i see it playing exactly the first item))) Funny thing that the first item is playing when i start at 15 minutes before the project ends)
All the markers are incorrect but visual item places are placed correctly.
I tried to do the time offset in project setup, but the markers are still incorrect plus visually it looks like there is nothing, but it plays needed item.