Error with version 1.13

Since upgrading to version 1.13, my client can no longer save changes to a table. When trying to save, this error message appears –

“Saving failed: AJAX call successful, internal saving process failed. Try again while holding down the “Shift” key.”

We can save the table by holding down the SHIFT key as suggested, however, our client is not having any success with that option.

The error is not happening with version 1.12, so we keep rolling back the plugin to 1.12 to allow her to work on the tables but it’s getting quite frustrating. This is happening on other websites also, regardless of the WordPress theme installed. All sites are upgraded to the latest version of WordPress, plugins updated, etc.

Any thoughts on when you expect to fix this so the error message on a future rollout?