6.2 Bug - space and jpg export (other colors)

When I press the space bar and move the page with the left mouse cursor, the image jumps, all the time returns to the initial value. In addition, when exporting to jpeg format, the colors are different, blue becomes bright (with a different saturation), you can see compression losses. Is there a chance to improve it?

Thank you for reporting this! Will be fixed in 6.3 release.