Dear all, I am trying to run MR-Rosetta using the gui; [ROSETTA_VERSION]: 2021.16+release.8ee4f02 Phenix version 1.19.2-4158 running on Ubuntu 20.04.2 LTS (20.04, focal) rosetta.run_tests seems to run without errors. As inputs, I use a HHpred file, a reflection file, a sequence (FASTA) file and I tried also providing directly the fragments files from the Robetta server. After generating some starting models, the runs keep crashing during the rebuild stage giving the error messages below. Is there a way to troubleshoot this? It does generate some initial models, so it seems to correctly read the HHPred file and the fasta file. Thank you in advance, Andrea non-zero return code: 139 Failed to run REBUILD from rebuild.log AN INTERNAL ERROR HAS OCCURED. PLEASE SEE THE CONTENTS OF ROSETTA_CRASH.log FOR DETAILS. Segmentation fault (core dumped) from ROSETTA_CRASH.log: [END_BACKTRACE] [FILE]: SIGSEGV [LINE]: 11 [START_MESSAGE] Segmentation Fault [END_MESSAGE] [END_CRASH_REPORT]