Error bundling ship solution

[hugoabernier]

When bundling using --ship parameter, we get:
Error - [webpack] 'dist':
mermaid-web-part-web-part.js from UglifyJs
Unexpected token: name (v) [mermaid-web-part-web-part.js:48138,6]

[scscott12]

I am getting the following error when --ship parameter
Error - [webpack] 'dist':
mermaid-web-part.js from UglifyJs
Unexpected token operator «=», expected punc «,» [mermaid-web-part.js:28213,41]
flow-web-part.js from UglifyJs
Unexpected token operator «=», expected punc «,» [flow-web-part.js:23585,41]
sequence-web-part.js from UglifyJs
Unexpected token operator «=», expected punc «,» [sequence-web-part.js:23585,41]