What is the maximum Radius of the Corner Tool (and other issues)?

[GarryP]

Windows 10 Home 1909, Designer 1.7.3.481.
(See attached GIF.)
As part of an experiment I created a document in Designer that is 20x20 metres (don’t ask why).
I then created a rectangle and converted it to curves – all good there.
Then I tried to use the Corner Tool but, by dragging a corner node, I could only create corners that were, at maximum, 0.169 metres in Radius (value may be rounded down by the UI).
I then tried to change the Radius using the slider of the control in the Context Toolbar but could only get a 0 Radius.
Then, changing the size of the Radius by typing into the same field allowed me to change the value but the corner didn’t get any bigger than my earliest attempt.
Is any of this expected?

[Move Along People]

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[Joachim_L]

I think this is an unnecessary limitation, but there is one crude workaround for you. In Document Setup change the resolution to ONE dpi. Make your rectangle, convert to curves, use your corner tool and again convert to curves. If you miss the last step, you will lose your big radius. Now you can change to 300dpi again.

 

[Move Along People]

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[Joachim_L]

7 minutes ago, haakoo said:

Well you could bake corners and it would be converted to curves in one go

Even better.

[GarryP]

Converting to curves again or baking the corners aren’t perfect solutions (and neither is having to change the DPI in the first place) but they do let me get what I want – up to a point – so thanks for that.
However, this workaround does seem like a strange way to have to do this. Maybe there’s a technical reason why really large corners don’t seem to be possible.