Translation breaks text in Gutenberg

Hello,
Since the last version I can’t do translations with the plugin because it breaks all the text.
I use three languages in my website with Polylang to manage them and this plugin to translate. I write the article in Portuguese (before translate: https://ibb.co/47hjz5t), copy and paste it into its English or French version, I do “Save Draft” and update the page (otherwise it doesn’t translate) and finally, when I try to translate, the plugin breaks the article, as you can see in this screenshot: https://ibb.co/RDLv2gq.
This issue only starts with the version 1.5.7.
`I opened a new thread because, unlike nicomhr, I don’t post images, tables or other content directly in the post. I just put the ” capital letter” in the article and that is interpreted by the plugin. However, the translation is repeated several times as the plugin interprets Gutenberg paragraph blocks as “Classic” blocks and creating various errors (see image: https://ibb.co/7bd9Dv6).
How can I fix the problem?
Thank you.

Bruno Micael Fernandes
o largo. _ https://olargo.pt