Undo function not working as expected

[supriya-ck12]

While using the iinkJS with Math recognition and image/png in the mime type, the undo functionality does not work as expected.

Steps to replicate the issue:

1. Open the myScript editor
2. Draw a number
3. Click on undo button
4. Redo button is still disabled.

Issue

When the first drawn element is removed using the undo button, the redo button is still in the disabled mode. Additionally, the result content is not cleared from the UI.

Reference code is taken from - https://github.com/MyScript/iinkJS/blob/master/examples/v4/websocket_math_iink.html
Demo link - https://codesandbox.io/s/myscript-image-issue-demo-7vh21l
Note: replace the server keys with the actual ones to view this behavior on the demo link (https://codesandbox.io/s/myscript-image-issue-demo-7vh21l?file=/index.html:197968-198084)

Screen recording

myScript.issue.mov

[Olivier-myscript]

Contacted via the forum.
Thank you

[supriya-ck12]

Hi, @Olivier-myscript Could you share the updates regarding this issue?