Of course it's true, the run coordinator must be contacted before.

However, the action was not planned in advance and instead moved by some "emergency" situation: the fact that the interferometer was suffering a pathological situation, i.e. SSFS_Correction very high (figure 1) and arising of the line at 273Hz  in Hrec (figure 2) which in the past brought to saturation of the SSFS correction and therefore to an unlock (#45992). All this was witnessed by a very striking oscillation of the IMC reflection.

Given the situation, I tried to adjust the SSFS gain (and for this asked a suitable status of the ITF). However, the unlock seems to be unrelated to the undertaken actions, as shown in figure 3 and 4, which is a zoom, where the B1 power goes up while SSFS correction doesn't show any change.

Investigations are ongoing to understand the origin of this issue.