Operating system: Windows-10-10.0.17763 64 Bits
Graphics card: GeForce GTX 750/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 399.24
Broken: version: 2.80 (sub 74), branch: master, commit date: 2019-06-19 18:29, hash: rBd30f72dfd8ac
Short description of error
Keyframed properties from strips on the video sequencer are not binded to the strips, so if you move it around the timeline, the keyframes will keep his original positions. It seems a regresion from 2.7 which keep the keyframes relative to the strip ( or binded some how ).
Exact steps for others to reproduce the error
On default video editing layout insert some strip, animate some propertie on the strip using keyframes, move the strip on the timeline.