I use jump lists alot, and on Build 10041 they are broken
I was able to add a 'few' pinned items in the previous build, but while I had my jump list set to 15, it would never display recently closed files in order to then pin them - Excel and Word 2013.
Upgraded to build 10041 and found that recent items did now show, but when trying to pin them it would pin winword.exe or excel.exe, or chrome.exe or iexplorer,exe rather than the file/website. Clicking on the newly pinned item would bring up an error message saying it doesn't know the file and if I wanted to delete it. Clicking yes, nothing happened
I was unable to unpin these shortcuts and eventually had 15 pinned winword.exe or excel.exe, or chrome.exe or iexplorer.exe in each jump list that could not be deleted.
Thankfully I was able to find a command online to clear the stored jump list settings but now have to use older methods to access files - shortcuts on desktop, file/open, using Windows Explorer
Windows 7 had PERFECT implementation of jump lists, Windows 8/8.1 broke it and Windows 10 TP makes it unusable