One problem I am seeing is the developer handoff. Often designers give developers a Figma file, which is constantly changing, so developers are not sure when a design is finalized.
What other issues do you face in your team?
1) designs that tend to be desktop first (and opposed to mobile first). Lots of images, extra long scrolling on mobile, etc. Basically an experience that doesn't impress on mobile.
2) designers that write cheques that developers have to cash. Mind you, it's good to be pushed outside your dev comfort zone, but there are limits (especially when there are time / budget limits).
3) designs where the UX wasn't thought through, or simply isn't user friendly, and even after pointing out the (obvious) flaws there's no revisions.