Hi all,
I'm not sure if this is already common knowledge or not, but I haven't seen it posted in the forums or in other online documentation so thought I would share it in case this crops up as an issue for anyone else:
There's a limit of 120 tables that can be published to the online app from the desktop client in a single dataset.
Going over this number results in the following error message in the publishing window:
"An error occurred when attempting to publish [filename]: Publishing failed for an unknown reason."
This seems to show up as a timeout error in the logs if you have those enabled.
The 120 figure was provided to me after raising a support ticket for this error message, and when I reduced the tables to that number it did start to publish successfully again.