I suspect I may be having this issue too, also crashing in the initial battles with FF7_bc. Using all the current mods except for Dynamic Weapons, Jessie Mod and Sephiroth Story mod. Here is my crash dump for what it's worth. sendspace.com{slash}file{slash}w9ywa4Note I am using the break 9999 from the Reunion mod.
The Reunion mod from where? The Catalog or the standalone installer?
I created a new profile to test - I get the same issue when I only activate the reunion mod, enabling beacause and break 9999