We’re aware of an issue causing random crashes when opening the session browser.
Please be assured that our team is actively investigating to resolve these occurrences as soon as possible.
Temporary workaround: Use Steam Invites to join friends instead of the in-game browser.
We’ll keep you updated as soon as we have more information on the matter. Thank you for your patience and for helping us make Abyssus even better.
— The Abyssus Team