[Bug][Jupyter Widget]Polygon shifts when moving the map

[RollingCP]

Describe the bug
I encountered this problem in Jupyter, but I think it applies to the engine.
I visualize a polygon (as a one-row geopandas df). The df is originally in the following crs

<Compound CRS: COMPD_CS["CH1903+ / LV95 + LN02 height",PROJCS["CH ...>
Name: CH1903+ / LV95 + LN02 height
Axis Info [cartesian|vertical]:
- [east]: Easting (metre)
- [north]: Northing (metre)
- [up]: Gravity-related height (metre)
Area of Use:
- undefined
Datum: CH1903+
- Ellipsoid: Bessel 1841
- Prime Meridian: Greenwich
Sub CRS:
- CH1903+ / LV95
- LN02 height

When I drag and move the base map, the relative position of the polygon to the base map shifts. It's very easy to observe when zoomed in. The issue persists after I re-project the df to other crs such as EPSG:3035 and EPSG:4326

To Reproduce
The GeoJSON file is uploaded (changed the extension to json, otherwise cannot upload).
gemeinde.json
Steps to reproduce the behavior:

gdf = gpd.read_file('path/to/gemeinde.geojson')
map = KeplerGl(height=600)
map.add_data(gdf_gem, 'gemeinde')
map

Expected behavior
I would expect the relative position between the polygon and the base map to be constant.

Environment (please complete the following information):

• Python version: python3
• keplergl Widget version: 0.3.6

[ibgreen]

Does your polygon have any elevation? That could explain why it seems to "shift".

[RollingCP]

Does your polygon have any elevation? That could explain why it seems to "shift".

Hi Ib, thanks a lot for your reply! I looked into the coordinates and indeed found the third entries for elevation, and the polygon didn't shift after I drop those entries.

I wonder if the team can add an option for enabling/disabling elevation info. Currently there is height option, but it seems to be irrelevant to elevation.