3Dflex mesh prep errors

I got an error when I run 3Dflex mesh prep.
Traceback (most recent call last):
File “cryosparc_master/cryosparc_compute/run.py”, line 93, in cryosparc_compute.run.main
File “cryosparc_master/cryosparc_compute/jobs/flex_refine/run_meshprep.py”, line 131, in cryosparc_compute.jobs.flex_refine.run_meshprep.run
File “/fiji/software/cryosparc/cryosparc2_worker/cryosparc_compute/jobs/flex_refine/segfile.py”, line 40, in read_seg
cchilds = rid_to_children[root].copy() # children to expand
KeyError: 62
Did anyone has the same error message? How to solve it?
Many thanks!

Traceback (most recent call last):
File “cryosparc_master/cryosparc_compute/run.py”, line 96, in cryosparc_compute.run.main
File “cryosparc_master/cryosparc_compute/jobs/flex_refine/run_meshprep.py”, line 131, in cryosparc_compute.jobs.flex_refine.run_meshprep.run
File “/home/dlsw1/Programme/cryosparc/cryosparc_worker/cryosparc_compute/jobs/flex_refine/segfile.py”, line 40, in read_seg
cchilds = rid_to_children[root].copy() # children to expand
KeyError: 73

i face the same issue here when i input my segger map and connection tress. its due to the regions that are in the seg file but are not listed in the connection tree.

@zzhang did you delete/hide any regions from the segmented map? you can reopen the file to confirm