Original report: https://wordpress.org/support/topic/divi-theme-conflict-2/
When Divi and Yoast SEO 7.7 are active, the characters 'o', 'p' and 'h' cannot be used as there are certain shortcodes created by Divi that are getting triggered.
To reproduce, activate Divi and activate Yoast SEO 7.7 Create a new page and click 'Use the divi builder'.

Edit the snippet preview and use a word or character involving the 'o', 'p', 's' or 'h'. See that either no character is being entered, or a popup appears.
When the 'h' or 's' is entered, nothing happens. When the 'p' is entered, below popup is shown.

When the o is entered, the divi builder settings show up.

I've contacted our contact person for Divi - Dustin ( @lots0logs ) on Slack.
I've investigated the issue and suspect the conflict stems from the introduction of Draft.js editors in our plugin. Draft.js editors are not <input>s but <div>s. It looks like Divi Builder listens for "h", "o", "p" and "s" keypresses, and 'fires' the shortcut event (opening a pop-up etc.) when those keypresses are done when the focus is not on an <input>.
The people from Divi (Elegant Themes) are currently investigating this issue. There's no confirmation yet, but it looks like this issue lies within Divi.
I can confirm that this issue lies with Divi. We are working on it and expect to release a fix later this week.
Please inform the customer of conversation # 394466 when this conversation has been closed.
Please inform the customer of conversation # 394486 when this conversation has been closed.
This should be fixed with the newest Divi update version 3.8.1, see their changelog: https://divinotes.com/divi-changelog/.
Official Divi changelog here: https://www.elegantthemes.com/api/changelog/divi.txt
Therefore, I'm closing this one.
This same problem is happening with me. And I have the lastest versions of Divi and WP. Any answers?
Most helpful comment
I can confirm that this issue lies with Divi. We are working on it and expect to release a fix later this week.