We have been using WP-Table Reloaded for months without a hitch. This morning we upgraded to WP 3.5 and now we are starting to notice some erratic behavior in the plugin.
For example, we routinely uncheck the "Every second row has an alternating background color" and "The first row of your table is the table head (HTML tags <thead> and <th>)" boxes so that we can customize the first table row with CSS. Now since the upgrade, these boxes randomly recheck themselves, resulting in the tables looking differently than we want.
The other issue is that edits made within the Edit Table page are randomly being reverted to the original version of the table as created before the upgrade. I have had to re-edit a table we published this afternoon several times. At this point it's not worth dealing with, so we will wait until the bug is resolved before updating our tables again.
Thanks for a great plugin. We hope that it can be brought into full compatibility with WP 3.5 as soon as possible.