I am having the same issue for my game this saturday night. Made 6 soundssets in the creator, which is kinda buggy by itself. Closing the Creator does not close all the processes, which makes a next start impossible until i kill the process manually.
The first upload of the soundset went okay. From the second set forwared every upload was put into the Media/Export folder and did not do anything until i restarted the Creator (which first needed to be killed in the taskmanager)
I did so with every single one of the 5 sets. Eventually i got them all uploaded.
Now, starting the player i have soundset 1 twice, soundset 2 once and soundsets 3,4,5 and 6 cannot be found.
Working on Win10 with full admin rights here.
UPDATE: Or i could read the known issues post first, in which both problems are being mentioned. My “Categories” dropdown box was empty on soundset 3,4,5 and 6 and noticed an empty Reverb setting somewhere. Re-uploading set 3 worked, So i assume i can fix the others with being not stupid as well.
Only issue now, is that i have duplicate soundsets showing up in the Player. Can i delete the ones that are duped?
*Leaving this here as “Post of failure+1”, perhaps someone else will learn