Guild Wars 2

My mouse pointer constantly disappears in GW2. This equally happens when I use fullscreen and windowed fullscreen. It is a bit easier to manage on fullscreen. The same happens to my husband, who has a similar setup but monitors of a different brand to mine.

Some clues:
- My setup: win 10, two 4k monitors, a third which is really a 27 cintiq but disabled / turned off when playing.
- When involving the mouse buttons in moving (for turning or for running with LMB and RMB pressed down), the mouse pointer likes to disappear and does not come back. GW2 is the only game I play but I work in a lot of different applications on this computer (zbrush, 3ds max etc) and GW2 is the only application where something like this (or remotely similar) happens.
- Sometimes I can find it again by moving it a lot and sometimes it does not come back until I press my F2 leap ability (i play a guardian). Then it magically reappears.

This can be pretty major problem. For instance, when it happend to me in the mordremoth fight, I stopped fighting and for a long time I just tried to get my mouse pointer back. I even asked my husband to step behind me to see if he can see the mouse which he could not. It is a nightmare in pvp as well.

Apart from this a lot of UI elements feel too small on a 4k monitor. In the new spvp map I can barely see anything on the mini map and i can not zoom in. Chat is readable on the largest setting but I would prefer it to be bigger.
I think it would be great to have more control over different UI elements, due to the small size of the UI on a 4k resolution, it is very hard to keep an eye on the party element of the UI

And please PLEEEASE allow to us to increase the size of the mouse pointer and even its colour <3