Due to iOS14 compatibility issues please follow instructions, depending on your model, to address the issue.
1. M2, X10-4K, X100-4K
Please download Eairplay.apk and follow SOP.pdf Instruction to install it on your projector.
2. M1+-2
Update your projector to FW version 1.03 or later according to this FAQ.
Link> How do I update M1+_G2/M1+_V to FW ver. 1.04?
3.M1 mini plus
Update your projector to FW version 1.02 or later via OTA after connecting your projector to the internet.
Note: This applies to M1 mini plus, M1 mini plus-2, M2, X10-4K, X10-4KE, X100-4K, X100-4K+, and M1+-2
Note: Some streaming apps will not display content when using screen mirroring due to copyright laws.