Instagram Feed Pro 6.4.1

* Fix: Added more debugging info to the System Info for oEmbeds.
* Fix: Added a workaround for a rare issue where oEmbed access tokens wouldn't save.
* Fix: Carousel posts would not show images when using the "Disable JS Image Loading" setting and image resizing was disabled.
* Fix: Hashtag posts were not showing up in a mixed feed that included a hashtag where the hashtag had not been used in another feed previously.

* Fix: Fixed an issue caused by an unannounced Instagram API change where video post thumbnails would not display if the image resizing feature in the plugin was disabled.
* Fix: Added oEmbed account info to the plugin "System Info" to make debugging easier.

* Fix: Fixed an issue with an Instagram API change causing some images not to display if the image resizing feature was disabled.