Thanks John. I did submit a support ticket on Monday. Unfortunately no response yet since this is a pretty big issue. Hopefully it gets solved soon, appreciate the help!
Here’s a video: https://drive.google.com/open?id=1ehk3_vGBAQ7QzNvhVcnrC4S9luI6KdpU
The first example shows it’s working perfectly with 5.7.13 then I update and do the same thing with 5.8 and it gets stripped.
Thanks John but that’s not the issue. This was not happening before 5.8. I rolled back to 5.7.13 and it then worked perfectly again. Also the main WP content field works fine as well on 5.8 and doesn’t remove the p tags. So it’s definitely just the ACF WYSIWYG field.
I also already have TinyMCE Advanced installed with the appropriate settings and have the issue. Tried deactivating that too just to see if it was conflicting and still the same issues.