As you can see, the landing gear is down and the flap is in 2(if the flap is moving a blue box will appear around the flap mode), but the display just didn’t work. The A330-900 have this problem too, I didn’t find any similar problem in other Airbus aircrafts:
A350
As you can see, the A350’s flap display works perfectly fine:
Might be worth mentioning your device brand/model, software version, and what version of Infinite Flight you are using. That will help those who have the ability to note the issue internally to replicate and reproduce the issue consistently so they can pass it on to the appropriate people for consideration.