didn't you create your personal workspace?
No, not specially.
But usually the workspace comes up like it was last time I used ID. Same as it does in Illie.
I suppose saving a personal workspace solve the problem?
Is InDesign more sensitive to workspace changes than Illie?
yes, usually it comes up as you left it... at least, for me that was right for years. Never experienced problems like yours, but if it happens, I think, personal workspace is a way to go. At least you can restore your panels easily, with one click. Afaik, there's no other settings in preferences or wherever concerning this.
I’ll remember that :-)