Hi. This looks like a similar question to this thread, but I don’t see a solution there. I’m going to try to explain the situation clearly.
I want to have a custom master page with a graphics frame which I can then change on a layout-by-layout basis. I had hoped that I could put the most common graphic into the master page (as a “default” graphic) and then replace it on a case-by-case basis (local master page override). However, when I tried this, the moment I changed the graphic on a single page of a part layout, the master page changed to include this graphic. (I never expect a master page to change as a result of an action within a layout; this seems really surprising.) So, I went into the master page and deleted the graphics frame to start over; I left the graphics frame empty and tried again. But the same thing happened; within the Flute 1 layout, I changed the graphic, and the master page now contained that graphic. I must be misunderstanding some principle of this?
(The reason to use a master page as a starting point is to make sure things remain as consistent as possible whenever I want to use this little graphic. This idea was reinforced by Lillie’s recent advice in this thread: “it does sometimes involve making local adjustments (i.e. overrides) but can be very useful to use as a “base”, […snip…] you can get most of the way there with the master page, then tweak.”)
I know this is hard to explain. Here’s a low-res GIF where I try to show it (HQ version here until Dec 2019). On the left, the master page with the blank graphics frame. On the right, the part where I am editing it. I replace the frame with the graphic I want, and on the left you see the master page change at the last second. (Sorry it’s quick.) Does this mean I need to delete and replace the graphics frame every time I want to edit it? I think I’ve read everything in the manual and tried to watch all the videos about layouts, and I’m still confused.
(While I’m here, why does it sometimes take multiple tries to get the file chooser for a graphic? I double-click, I press return… sometimes it doesn’t work for a long time.)