An issue with gamefeature content/connecting to a session

Yo, ive been working on a project as of late and im struggling to open it as of late. I’ve never had these issues until I imported a model. I tried deleting it and now sessions just wont connect. There also seems to be an issue with the game feature content. Any ideas on how to fix this?
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@Mothical Thank you for your report! We would like to look into this further, would you be able to submit a bug report using the form available here? Fortnite Creative