I have a molecule in PyMol which I want to open in ChimeraX. But after exporting the molecule as .pdb, some structural information seems to be lost - regions that in the PyMol session file are embedded into helices are now loops (this regards to several residues only). If I open the .pdb in PyMol, it looks the same as in chimeraX. I have no idea what I keep doing wrong, any hints? The first 14 residues of the original protein (from PDB, corresponding to Histag) were removed with a custom PyMol script which changed residues enumeration so that it properly starts with 1 - that is why the molecule from PyMol is needed. I would be grateful for the help.