Hi there, Thanks for reaching out. Are you referring to Altar of Reflection: Catalyst, specifically the Witch's Eye boss? If so, please know the team is indeed aware of and looking into an issue with this boss staying permanently immune, which may explain what you're experiencing. If you're referring to something else, though, please capture a video that demonstrates the issue. You can upload the footage to a public video hosting site, like YouTube, and we’ll be glad to take a look.