About adding the design of experiments

Nodeworks
#1

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When I add the design of experiments,an error happened.
How can I solve it?
Thanks!(The following shows my version information)

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#2

Looks like matplotlib changed, I’ll fix and push a point release.

#3

Thanks！When I try to update the version of Nodeworks to 20.2.0,I found that the error doesn’t exist anymore.

#4

Awesome! I searched the code and did not see any more add_subplot('111')