Corners missing on TrayLayout

[Zenock]

Describe the bug
I created a box here https://www.festi.info/boxes.py/TrayLayout?language=en using TrayLayout. When I export the box as an svg the corners are missing on the base of the box/tray. All the other pieces have all the corners and the tabs have all their corners only the 4 corners of the base are missing.

To Reproduce
https://www.festi.info/boxes.py/TrayLayout?language=en
The settings I used were:
h=140
hi=0
outside unchecked
sx=50*2
sy=140

,> 50.00mm
| ,> 29.50mm
+-+-+
| | | 140.00mm
+-+-+
Thickness=3.0
format=svg
Tabs=0.0
qrcode, debug, and label unchecked
reference=0
inner_corners=corner
burn=0.1

When I do this, if I zoom in real close to the 4 corners of the base and only the base piece, they are missing the curved part of the corner leaving small gaps. The gap is 0.1 mm in the x and y directions leaving an overall direct gap of the sqrt of 0.2. I can and have draw this curve in by hand but it is annoying and it ONLY happens on the base piece.

Expected behavior
I would expect the base piece to be a closed path. Not sure what else to say here.

Screenshots or Drawings

Additional context
I really enjoy this and really shouldn't complain. Maybe I'm doing something wrong? It's not so terrible I can't deal with it. Just thought it might be worth pointing out.