I’m glad that the raft seemed to help. One last thing that could be causing this fusing is your Z offset being too low, which would cause the bottom layer of your print to be squished and then fuse the moving parts together.
This can be done through the LCD menu by clicking the LCD knob in once to bring up the main menu then navigating to:
Configuration --> Advanced Settings --> Z-Offset
Then, you can make your first layer more squished by turning the knob counter-clockwise. You can make your first layer less squished by turning the knob clockwise.
The typical z-offset is a number somewhere close to -1.35mm. If you change the z-offset from -1.35 mm to -1.45mm this will make your first layer more squished. If you change the z-offset from -1.35 to -1.25 this will make your first layer less squished.
The raft would fix this because now the raft is your first layer, so it’s squished instead of the part.