Cannot set colors for GeoPoints when using send_columns

[danielduberg]

Describe the bug

Setting the colors for GeoPoints does not work when using send_columns.

To Reproduce
Steps to reproduce the behavior:

1. Run the code below.

import rerun as rr

rr.init("GPS Color Error", spawn=True)

indices = rr.TimeColumn('time', sequence=[1])
lat_lon = [[59.319221, 18.075631]]
radii = [rr.Radius.ui_points(10.0)]
colors = [[255, 0, 0]]

rr.send_columns(
    'gps',
    indexes=[indices],
    columns=rr.GeoPoints.columns(
        positions=lat_lon,
        radii=radii,
        colors=colors,
    ),
)

Expected behavior

The GeoPoints are being sent to the Rerun viewer.

Backtrace

RerunWarning: send_columns: ArrowInvalid(Length spanned by list offsets (3) larger than values array (length 1))
  rr.send_columns(`

Desktop:

• OS: macOS Tahoe 26.2

Rerun version

rerun-cli 0.28.2 (base lance map_view nasm native_viewer oss_server perf_telemetry re_server release_full release_no_web_viewer web_viewer) [rustc 1.88.0 (6b00bc388 2025-06-23), LLVM 20.1.5] aarch64-apple-darwin prepare-release-0.28.2 e058250, built 2026-01-08T12:37:56.485603Z
Video features: av1 ffmpeg nasm

Additional context

It works setting the color with the log function:

import rerun as rr

rr.init("rerun_example_geo_points", spawn=True)

rr.log(
    "rerun_hq",
    rr.GeoPoints(
        lat_lon=[59.319221, 18.075631],
        radii=rr.Radius.ui_points(10.0),
        colors=[255, 0, 0],
    ),
)

The send_columns function works when colors not set:

import rerun as rr

rr.init("GPS Color Error", spawn=True)

indices = rr.TimeColumn('time', sequence=[1])
lat_lon = [[59.319221, 18.075631]]
radii = [rr.Radius.ui_points(10.0)]

rr.send_columns(
    'gps',
    indexes=[indices],
    columns=rr.GeoPoints.columns(
        positions=lat_lon,
        radii=radii,
    ),
)