Transient Key Length issues. [Cache issues]
The optionname field in the options table is varchar(64). Currently '_transient_timeout_%ye_video_%' comes up longer than this [File = youtube-embed/includes/aye-options-general.php].
This results in this error:
WordPress database error Data too long for column 'option_name' at row 1 for query INSERT INTO
The only solution I have found is to disable the plugin's cache!