Sorry for the delay, update on my lack of progress.
The final word from Logitech is that it's been flagged as a bug, unfortunately since I'm not important they won't get around to it for a couple months, thanks Logitech!
I'm still having to reenter the data with an occasional "Unable to display content" condition thrown in here and there. At least I've gotten it down to about an hour of typing and entering :(.
(btw, they speculate that the particular server that I'm on has problems when they clear out the cache overnight since it only happens overnight. They said setting up another account won't probably fix it although I'll probably try it anyway since I basically have to start from scratch, nothing to lose.)