Zoom on the possible state transition during the decay of V4641 Sgr, with the two panels as in Fig. 1. Fully colored markers highlight the standard evolution obscured by a steady absorber, and transparent markers highlight the erratic and typically harder flux dipping periods interpreted as the sign of a second, variable absorber. We note that the 6−10/3−6 keV hardness ratio does not fully encompass the spectral evolution of the dipping observations.