**System Information**
Operating system: Windows-10-10.0.19041-SP0 64 Bits
Graphics card: GeForce RTX 2080 Ti/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 456.71
**Blender Version**
Broken: version: 3.0.0 Alpha, branch: master, commit date: 2021-05-28 16:37, hash: `rB9225fe933ae9`
**Short description of error**
{F10147122}
When creating a mesh from two curves with the "Curve to Mesh" node the mesh gets twisted when the backbone spline goes up in Z. This might be because the orientation of the profile is calculated with a double cross product instead of parallel transport.
**Exact steps for others to reproduce the error**
Look at the file or create a Mesh by using two curves with the Geometry Nodes "Curve to Mesh" node.
{F10147121}