Spark squeezing Images after saving

[Corvinus Corax]

First of all: There is no Adobe Spark Board, so I hope it's ok to post it here.

I got a strange problem with Spark. I designed a posting with images from my library (quite large tif with alpha if that matters). Works well until I close the project and open it again, because this one image - and only this single asset, nothing else - is squeezed like hell. Any idea whats causing this?

before exiting the project:

after opening it again:

[Corvinus Corax]

Update: Could be theimage size. I tried to resize it down by a lot (still a tif with alpha) and no squeezing so far. So maybe Spark can't work with larger images?

[John T Smith]

Spark help https://community.adobe.com/t5/creative-cloud-services/definitive-guide-to-using-spark-content/m-p/1...