I was updating to catch-kathmandu-pro.4.9.3 today and the update failed. Then, when I went to retry it and I go to Update Theme, I do not see the Catch Updater and it is blank there. See screen shot:
https://storage.googleapis.com/leslie_storage/catch-updater.png
I was able to FTP and install the new theme. But, I cannot install theme with Catch Updater.