System Information
Operating system: Windows-10-10.0.19041-SP0 64 Bits
Graphics card: GeForce RTX 2060/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 462.59
Blender Version
Broken: version: 3.0.0 Alpha, branch: master (modified), commit date: 2021-09-17 02:57, hash: rB8bc27c508ae3
Worked: (newest version of Blender that worked as expected)
Short description of error
Paste several strips in channel 32 will insert them on top of each other.
Exact steps for others to reproduce the error
Copy several layered strip.
Paste them into channel 32.
