Incorrect mesh alignment after extrusion on curved path

[Thinkurvy]

Hi,

I have the following scenario:
- A spline path made of 2 points describing an arc (Bezier interpolation). Each point has "Auto Handles" OFF, and I manually set their Handle In & Out values to create an arc.
- A spline shape (the default 2D/Rectangle shape, the issue is more visible the wider this shape is - for example, width 20-)

I create a mesh using Shape extrusion > Volume mesh > Create mesh.
   


The problem is: the extruded mesh doesn't correctly align at the start & end positions:
   
In the image above, you can see the created mesh (in black) doesn't align correctly with the start. The red line is a reference of how it should align.

This is a problem because I'm building an editor where the player places several pieces together, and they should align perfectly with eachother. Currently they don't, and a gap is visible because of this issue.

How can I fix this? (I'm using the latest v8.8 btw)

Thanks!