Hi. I have the same issue with WooCommerce product images.
The plugin’s version is 0.1.22.
Elias Gómez, so how come Gutenberg DID change my content with the first auto-save? Luckily it happened with one page only. Now I know that simply viewing the content via Guntenberg might result in ruining the previous code. So first I have to turn off Gutenberg and ONLY THEN browse the pages in wp-admin.