GUI crashes when trying to annotate

Hi,
I'm following instruction in this video: https://www.jove.com/v/56162/volume-segmentation-analysis-biological-materials-using-survos-super

Everytime when I was at annotation step, SuRVos crashes when I clicked the pen button, the errror message is here:

### create_supervoxels ###
+ Loading data into memory
+ Computing supervoxels
[GPU] Reusing device (0) with 1024 threads
.+ 193 supervoxels created
+ Writing supervoxels to disk (10, 200, 100)
+ Generating lookup table
+ Remaping indexes to ROI
+ Writing lookup table to disk (200000,) (193,)
+ Generating supervoxel graph
+ Extracted (551, 2) unique edges
+ Ready
Traceback (most recent call last):
File "C:\Users\Tunhe\Anaconda3\envs\survos-env\lib\site-packages\survos\widgets\slice_viewer.py", line 61, in gt
if self._active == 'GT':
AttributeError: 'NavigationToolbar' object has no attribute '_active'

I'm on windows 10, with SurVos installed from Annaconda following the installation instruction here https://diamondlightsource.github.io/SuRVoS/docs/installation/

Thank you very much for help in advance!

Cheers
Tun