Can confirm same problem.
Custom theme using Timber (Twig engine), if i output default editor – all tags (br, p) are in place. Same output for ACF PRO WYSIWYG field – tags are stripped.
Tried to play with raw twig filter, add_filter autop – nothing.
As SKD mentioned changed function to the_field (in timber\twig case {{ fn(‘the_field’,’episode_editor’) }} ) – everything works as it should!
Note – there is no <p> tags in text editor (they gone if you click visual back) but wordpress rendered them on page.
ACF PRO version 5.7.5, WP 4.9.8
