Miller Columns error with showMultipleColumns: false

[claudiobosticco]

SmartClient Version: v13.0p_2024-01-10/AllModules Development Only (built 2024-01-10)
and
SmartClient Version: SNAPSHOT_v13.1d_2024-01-11/AllModules Development Only (built 2024-01-11)

Chrome on MacOS

Hello, I was trying the miller Column sample, with showMultipleColumns: false, so modified like this:

isc.ColumnTree.create({
    ID: "employeeColTree",
    width: "100%",
    showMultipleColumns: false,
    showNodeCount: true,
    height: 205,
    dataSource: "employees",
    autoFetchData: true,
    nodeIcon:"[SAMPLE]icons/16/person.png",
    folderIcon:"[SAMPLE]icons/16/person.png",
    showOpenIcons:false,
    showDropIcons:false,
    closedIconSuffix:"",
    showHeaders: true,
    showNodeCount: true
});

and I noticed that the back button works only after the first "column transition", and after I get this js error:

ISC_Core.js?isc_version=SNAPSHOT_v13.1d_2024-01-11.js:2694 Uncaught TypeError: Cannot read properties of null (reading 'getSelectedRecord')
    at _3.isc_ColumnTree_navigateBack [as navigateBack] (ISC_Grids.js?isc_version=SNAPSHOT_v13.1d_2024-01-11.js:4211:587)
    at _3.click (ISC_Grids.js?isc_version=SNAPSHOT_v13.1d_2024-01-11.js:4204:340)
    at _3.isc_StatefulCanvas_handleActivate [as handleActivate] (ISC_Foundation.js?isc_version=SNAPSHOT_v13.1d_2024-01-11.js:242:108)
    at _3.isc_StatefulCanvas_handleClick [as handleClick] (ISC_Foundation.js?isc_version=SNAPSHOT_v13.1d_2024-01-11.js:243:13)
    at _3.isc_c_EventHandler_bubbleEvent [as bubbleEvent] (ISC_Core.js?isc_version=SNAPSHOT_v13.1d_2024-01-11.js:2595:89)
    at _3.isc_c_EventHandler_handleClick [as handleClick] (ISC_Core.js?isc_version=SNAPSHOT_v13.1d_2024-01-11.js:2405:50)
    at _3.isc_c_EventHandler__handleMouseUp [as $k5] (ISC_Core.js?isc_version=SNAPSHOT_v13.1d_2024-01-11.js:2387:11)
    at _3.isc_c_EventHandler_handleMouseUp [as handleMouseUp] (ISC_Core.js?isc_version=SNAPSHOT_v13.1d_2024-01-11.js:2378:57)
    at _3.isc_c_EventHandler_dispatch [as dispatch] (ISC_Core.js?isc_version=SNAPSHOT_v13.1d_2024-01-11.js:2694:122)
    at HTMLDocument.eval (eval at isc__makeFunction (ISC_Core.js?isc_version=SNAPSHOT_v13.1d_2024-01-11.js:92:1135), <anonymous>:3:123)

Also the back button seems not very well positioned:

[claudiobosticco]

Hello, did you have a chance to look into this?