Events - When editing the Description, it corrupts the text

Events - When editing the Description, it corrupts the text

We put text in the Description which shows up in the 'canned' template invitation to participants.
If we click the 'Edit' link to open up the text window the description text gets corrupted with the "See More" text.

Results after clicking the Edit link next to the description (not the Edit button at the top of the page



where it should read "and analyze a test...."  
It is inserting the 'See More'into the body of text.

This needs to be fixed like now or yesterday!