I got the softlock after dying to happen again, and it doesn't appear to be exclusive to the grim birb (also don't know if this is a coincidence or not but it's only ever happened in this area)
Oh my thank you, I've never seen people have these specific problems. Its amazing what people can find that others miss. Finding out these sets of conditions exist its the real battle, fixing them is easy.
I'm going to do a quick bug fix today and upload it, Hopefully I will fix all the errors in 'From shadows' but the 'Mirror Mirror' stuff aren't actually bugs... I just haven't finised the area... its only like 40%
Thanks again