Loading visualization fails: it shows hidden module legends

Hi, this could be a bug:

Given a scene with a module that has actived “Show legend” (Colour and Legend layer), if this module is hidden, the legend (colour bar in the image) disappears with the rest of the image. However, if you save and close this visualization and load it later, the image is still hidden but not the colour bar. When it is only one module it is not a big problem but with more than ten is a big one due to I have to turn off all the legends that should be hidden.