Interesante el color del tablero, no te pega ningún reflejo.
Tactics Graph

Have the same in the App, thought it's because of my time. Maybe it decrease, because your rating is higher than the puzzle and you spend more time that a player at your rating should have spend on it?!

It says right there that I got +9, so that's not it, and it's not that much lower rated that it should give me no points

Say, you got a malus of 15 points and because of the time, but you solve it. So you have 7-15 = -8 (just a example. I see the point you have, becaus its says +7 but i think it is just to show you were right and don't show your real Accountrating...but you have to make a ticket to the developers, i'm not damiliar with chess maths

No, the green dot shows that I got it right, the +9 are the rating points that were gained including the time bonus or lack thereof

Having done some more, the whole graph seems to be acting weird. Like I got one wrong and got -9, then I got one easy one right and got +4. However the gain of +4 looks bigger than the loss of -9 when the drop should visually be more than twice as big as the gain. The green dot before the -9 is a +7 which is visually only half as big as the +4 when it should be almost twice the jump
This looks weird. It shows that I got it right and gained rating points, yet appears like I lost some since it's lower than when I started. I haven't paid too much attention what exactly did happen and have done some more before I noticed.