Custom editor doesn't work out-of-the-box

[jumble]

Browser version: Chrome 85.0.4183.83
r-c-e version: 0.42.0
Expected behavior: Can use all widgets specified in CustomEditor
Actual behavior: Layout -> Style pane displays the "Well, this is embarrassing" failure message.

Some errors are thrown:

Warning: Failed prop type: Invalid prop `activeOption` supplied to `RadioBlocks`.
    in RadioBlocks (created by UnconnectedRadio)
    in UnconnectedRadio (created by ContainerConnectedUnconnectedRadio)
    in ContainerConnectedUnconnectedRadio (at CustomEditor.js:52)
    (...)

Uncaught TypeError: value.match is not a function
    at UnconnectedTextEditor.hasTemplateStrings (TextEditor.js:82)
    at UnconnectedTextEditor.getAdjustedFullValue (TextEditor.js:112)
    at UnconnectedTextEditor.render (TextEditor.js:145)
    at finishClassComponent (react-dom.development.js:17160)
    (...)

...and

index.js:2177 The above error occurred in the <UnconnectedTextEditor> component:
    in UnconnectedTextEditor (created by ContainerConnectedUnconnectedTextEditor)
    in ContainerConnectedUnconnectedTextEditor (at CustomEditor.js:65)
    in div (created by PlotlySection)
    in PlotlySection (at CustomEditor.js:44)
    (...)

The value.match issue appears to be caused by trying to call match on a non-string- an object containing the following fields:

font: {family: ""Open Sans", verdana, arial, sans-serif", size: 17, color: "#444"}
pad: {t: 0, r: 0, b: 0, l: 0}
text: "Click to enter Plot title"
x: 0.5
xanchor: "auto"
xref: "container"
y: "auto"
yanchor: "auto"
yref: "container"

Trying to sort through the rest of this atm, but any help would be appreciated!

[LAKnoKAL]

Same for me, @jumble did you found any solution?

[jumble]

@LAKnoKAL unfortunately I didn't- not a blocker for me anymore, but hopefully it's resolved soon. Good luck!