compute_efield2voltage segfaults randomly when running over 1000 events

[mjtueros]

I could not make a small example to reproduce this issue, but is preventing me to run the simpipe reliably in lyon.
It happens on some set of files but not on all of them. But when you identify a set of files where it happens, it always happens.

it seems to be crashing somwhere inside of shower.load_root(self.shower) ((line 133 of efield2voltage.py)

the last two messages i get are
21:58:18.668 DEBUG [grand.geo.turtle 209] Map /pbs/home/t/tueros/GRANDlib/grand/data/egm96.png already in cache
21:58:18.669 DEBUG [grand.geo.coordinates 98] geoid_undulation for [40.99000168] [93.94000244]

looking at the output fo working events, these two lines should repeat a couple of times....but it dies at the first

is definitelly something happening in /grand/sim/shower/gen_shower.py , line 82 to 133, related to the coordinate system.

To make it more obnoxious, I have no problems running on my own PC, on any set of files.
In lyoon i run with apptainer, in my pc with docker.
Sorry i cant give anything easier to debug.

[mjtueros]

to add insult to injury, the error is not reproducible at all. Running the same script with the same input twice resulted in failing the first time but succeeding in the second!. exactly the same run conditions.