I did not notice it directly but this last week we upgraded our store from V4.3.3 all the way up to V4.3.6.
However today I decided to make some design changes using the theme editor and it appeared to me, the theme editor is broken.
With broken I mean you can enter the theme editor mode but you cannot actually do work in the theme editor. See screen shot here
I never had this experience ever. Did anyone of you here had this experience yourself or working with clients ?
I will open a support ticket just to be sure but I had hope to do something this evening with the design before customers show up at my virtual store.