Hm, tested with your file and it works here:
It’s not the most recent gimp or G’MIC on my side (2.9.9/2.1.5), but maybe something important changed. Since I will not be able to test with a more recent version for a couple of days, it would be good if somebody else could do the test. However, can you give any additional information (command line/log outputs, software versions, …)?
When exactly does it crash? Could you please try the following: Before loading the image, open G’MIC and set the “Show preview after” drop-down to the first point (“Threshold”). Cancel the G’MIC window and load your file. Open G’MIC and check if it already crashes. If not, go to the second preview step and so on, and tell when it exactly crashes.