Dear @mg643,
Thanks for reporting. The error during compiling job outputs seems to be a bug, however it shouldn’t affect the job’s stream log outputs, including the heat maps and the candidate solution table. We’ve added this to our tracker.
Unfortunately determining helical symmetry from a cryo-EM dataset in isolation is still an open problem and in many cases it actually isn’t possible to do so without ambiguity (see Helical ambiguities and Helical Tutorial Symmetry Output for some previous threads touching on the issue, also Prof. Egelman’s paper on the subject). The symmetry search job is rather simple in that it uses the volume to do a grid search over the indicated parameter ranges, which was intended for cases where C1 reconstruction/refinement is possible – but if the volume itself didn’t converge on the correct symmetry solution, then it won’t be of much help. There are other programs that use different approaches, e.g. the SPRING packages’ SegClassReconstruct program (based on determining symmetry from a single 2D class), and also more manual methods like Fourier-bessel indexing using the power spectra of 2D classes.
Hope this helps,
Michael