FWIW the Han Solo story I've heard from a variety of sources keeps returning to one thing: reshoots. KK was unhappy with the direction of the film (and, as reported in Variety, in general with L&M); felt it wasn't Star Wars-y enough. Things came to a head when she insisted L&M collaborate with new creative talent for reshoots/edit. This should sound familiar to RO fans. Whereas Gareth played ball, L&M balked and told KK "no way." They stuck to their guns, and that was the proverbial straw on camel's back. Everyone I spoke to seemed to love what L&M had done, but also saw how it could upset a risk-averse studio. On the flip side, have heard Lucasfilm and KK love Rian's edit of TLJ