  The reasons behind the Great Dimming and subsequent rising in the brightness
of Betelgeuse between October 2019 and March 2020 still continue to baffle
astronomers. It has been shown by George et. al. (2020) that critical slowing
down preceded the dimming event. This suggested that the dimming was a result
of the change in the nature of the nonlinear dynamics of the star. In this work
we present additional evidence for dynamical changes in Betelgeuse prior to the
Great Dimming event, using nonlinear time series analysis. We study the
relations between the different bands in the photometry data collected from the
Wing photometry (IR/near-IR) and Wasatonic observatory (V-band). We also
analyse how the early warning signals studied previously changed during and
after the Great Dimming.
