I am also finding that some links are being stripped from Response Properties when I publish. For example, I tried posting this issue from my site, but it kept removing the Github URL when I press ‘publish’.
Here are the error details provided by WordPress:
WordPress version 5.5.1
Current theme: Collect2016 (version 0.1)
Current plugin: Post Kinds (version 3.4.1)
PHP version 7.2.33
An error of type E_ERROR was caused in line 255 of the file /home/readwrit/collect.readwri