Folder healthy, but still get 410 Gone

[PRabahy]

I tried to add copy an item to the public folder on the public grid but received an error. I am able to "ls" the directory and when I run "check" it says it is healthy, but when I try to upload it errors out.

Trace from command line:

C:\Users\paul.rabahy\Downloads\allmydata-tahoe-1.9.2\bin>tahoe ls public:
DNSBench.exe
PreviousGridPublicDirectory
ThisDirectoryWritecap-RecursiveLOL
bitcoin-0.7.2-win32-setup.exe
diskcryptor.7z
multibit-0.4.19-windows.exe
python-2.7.3.msi
test_for_martin
thanks!.txt

C:\Users\paul.rabahy\Downloads\allmydata-tahoe-1.9.2\bin>tahoe check --repair public:
Summary: healthy
 storage index: txm5k7xe52cw3d4kny372i46ly
 good-shares: 10 (encoding is 1-of-10)
 wrong-shares: 0

C:\Users\paul.rabahy\Downloads\allmydata-tahoe-1.9.2\bin>tahoe cp "C:\Users\paul.rabahy\Downloads\Provable Data Possession at !UntrustedStores.pdf" public:
Error examining target directory: 410 Gone
UnrecoverableFileError: the directory (or mutable file) could not be retrieved, because there were insufficient good shares. This might indicate that no servers were connected, insufficient servers were connected, the URI was corrupt, or that shares have been lost due to server departure, hard drive failure, or disk corruption. You should perform a filecheck on this object to learn more.

[PRabahy]

Improved readability of ticket.

[zooko]

escape "wiki words"

[zooko]

quote literals