The published file has a line around images where they don't exist in the Storyline 360 source. Can anyone help?

you have problems with the storyline feature "zoom image"

I have disabled one of the four zoom functions, here is the result

=> the storyline convert from the 100% size to the preview image does not work properly

you should open a support case

send them
 - your one slide example
   TIP: if you save .story 2x after deleting slides, the filesize will be reduced extrem (121 MB -> 3 MB)

 - a link to this thread

Jürgen

here are some technical infos for the support
 - the resize function for creating "zoom preview image" for PNG images has a bug

here the publish folder "mobile/"

 - 4 original PNGs
 - 4 created JPG (Shape... .jpg)

6kGf6jo89Iz.png (fullsize): no border

Shape6n3qsB6FE5j.jpg (genereated by storyline while publishing): with grey border

UPDATE:  attachment -> minimal example (created with 3.67) with one zoom picture

result:
https://360.articulate.com/review/content/c5e0628e-a430-4c30-9584-117c576ef5d0/review