Light2D randomly disapears

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:bust_in_silhouette: Asked By NerChick

Hi, I was creating my project and I have this problem. I have 3 Light2D. Two on add mode and one on mask mode.When I start project everything fine, but when I go back to the menu and back to the scene it randomly disapears. But when I tured of Light2D with mask everything fine. Please help me.
Here video of this bug: https://www.youtube.com/watch?v=6IjbTX6iTK8

Thank you)