Some issues when replacing words

I’ve used this plugin once in the past and I don’t remember having the following problems:

• It automatically transforms ALL the words with “é” to “??” (even those that I don’t want to replace).
• It transforms the page from blocks to the classic editor. (however, there’s a “convert to blocks” button that puts everything back to normal)
• It only replaces when both checkboxes are checked, but it says “WORD replaced with WORD successfully!”

It does search & replace correctly, but due to the issues above it’s not usable for the French language that has a lot of accents.

I’ve tested the plugin with no other plugins installed in Twenty Twenty-Four 1.1 theme.

I’ve submitted a review of the plugin before posting here, it’s my first time in WP Forums, so I only realized after submitting the review.