When exporting a file the first Export creates a file that does not have accurate colors. If I re-export that same file immediately after checking the first, the second file created has accurate colors. This has been a consistent bug exporting as JPG but I did experience this with PNG previously. I am on ChromeOS using Chrome browser. The file I am using in Photoshop online is a TIFF file that was created on the desktop version, and I did not have this issue with that file on a Windows desktop. I have not tried to recreate this issue with a different file.