Hello Redouane FRANE,
Happy to help!
Storyline 360 tries to import PowerPoint slides as accurately as possible, but there are certain features that don't get imported which might affect how the slides appear in Storyline 360. You can check out our article here for more information on importing PowerPoint content:
You can also share a copy of your PowerPoint file with us here or in private by opening a support case so we can take a look at why your slides are importing differently. We'll delete it when we're done!
