Dear forum
Igor Schein wrote

I believe I found a case in gap4v3 where IdGroup() command fails -
the output is [70, fail];

Below is the input file - sorry it's too long, it was generated outside
GAP and I just import it into GAP:

this group G has the identical LatticeSubgroups as [70,3]
but x:=SmallGroup(70,3);
gap> IsomorphismGroups(G,x);
fail
Best wishes
Kurt Ewald