Sorry, my bad. Had a bit more time to look at this. It doesn’t work because even though the widget is remove, it still exist and the variable is valid.
Visibility works much better. Put this on begin play:
Then you can swap on tick with:
Where does your last “add to viewport” is plugged ?
Also, it’s not an event tick
Rest of first picture just continues into the all that first person character stuff. Not relevant.
The stuff on the left of the second picture is what you already have on event tick. It’s the line trace code…
I’m just showing you how to connect it. I have tried this, it works. 
But I don’t have Event Tick aha
I used the input axis for that.
Anyway, I tried but it still doesn’t work, I’ll take another look, I might be wrong somewhere
Ok, either 
I forgot to remove the HUD I did previously.
So, It work, the Use crosshair appear and disappear but, the normal crosshair don’t appear at all ^^’
I’m trying to see what I can do, I’ll come back to you if I didn’t found
I searched but can’t find the problem, everything work but the normal crosshair never appear …
If you want to pack a minimal setup into a small project, I can download it and take a look. But apart from that I’m stuck I’m afraid…
Where can I send it to you ?
So you just make a small project with it in, zip up the folder, and upload it to somewhere like google drive. Then give me a download link
I think you’re very close though…
*We, you helped me a lot !
I prepare the file
Cool. If you make a new project, you can migrate the bit you want into there. That way you end up with a small file…
Here it is, I had to reput all action mapping, that’s why it took some time
https://we.tl/t-C2zQo057bh
(Strange, my answer doesn’t appear, well, I rewrite it.)
GOD DAMMIT ! It was a try before for the interactive crosshair.
Thank you so much for your help and your insane patience !
I’ll sure credit you in the futur update of my game.
Here is a screenshot of my blueprint for those that need help :
coool…
Thanks so much again, really !
GOD DAMMIT ! I forgot to turn it to visible …
It’s when I tried different technics for the crosshair change …
Well, I have to thank you very much for your ■■■■ patience ! You took so many times for helping me. I mean really !
I’ll credit you for sure in the next update I’ll make of my game.
Again, thank you so much !
Here’s a pic of my blueprint :