Thanks guys. That saves me about half an hour of work.

Now it gets totally weird!
While playing with an original character the markers are not being drawn but when I change the model to any NPC character they become visible. It can't be because of the different text labels. This and the marker rendering are two different independent threads.

I'm asking because the file size is exactly the same and it's always a pita to reimplement the modifactions. The game seems to run just fine with the previous update.rpf in the mods folder.

@ikt I've tried 2.10.13 but many of my constructors throw a NullReferenceException. That's why I was wondering about a breaking change in a bugfix iteration. Maybe it's because I reference classes which inherit from Script? I know the shvdn guys don't like that.
I mentioned the markers are drawn as soon as (I reckon) something is slowing down the thread handling. I've already tried a call to Yield() but to no avail. The Tick event fires once per frame if I don't set an interval, right? Heck it worked flawless before.

Hi,
I haven't played GTA V for several months and now that I'm back I face the issue that marker cylinders which are drawn per frame don't show up anymore neither with my teleportals mod nor with other mods using this. The teleportal name display above works, however. My mod does not crash and a fun fact is that when I let my character eat, drink or smoke something with the HumanNeeds mod, the markers are drawn while the animation runs.
So what specifically has changed while I was away and how can I fix it?
BTW I'm still on shvdn 2.10.10 because the newer versions make my mods crash. It's still 2.10, right? Bug fixes should not introduce breaking changes but they do in this case. I know V3 is out but that won't work anyway and I don't feel like rewriting all of my mods from scratch as I have retired from modding, actually.

@dannythezuko The installation location and the DRM are different but that's all. The program code and assets are all the same.

@officer201 You see? That's exactly what I told you above. Have you read it? Have you fixed your code accordingly? Have you even understood what I was saying? I suggest you learn some programming basics before you continue. That's not meant to be rude but the errors you made clearly show how uneducated you are in those regards.
Next time please add @Cyron43 to your comment or I don't get notified. That's why I replied so late.
You can also click on that tiny green "reply" right under my comment, not that big green Reply button at the bottom of the thread.