Bug - Blueprint Function is flashing and can not be changed

Development Programming & Scripting Blueprint
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1

Hello together,

i was changing some small things in a function inside my Character BP and now it’s flashing and i can’t edit it anymore.

It seems like if i compile it needs to be compiled right after again and saving as well.

Bug

It would be interesting if anyone knows the issue.

Thank you

Edit: It’s a function from a Interface and even after removing the Interface and adding it again, it’s still the same.

2

:wink: Ahah. I see it known from ancient times. :laughing: I have same problem. After some time of work editor begin flashing and force restart.

Most close to true - this flashing is problem of Nvidia drivers. Because it begin after I change video card.

You can’t do nothing, just wait Nvidia release perfect driver :sweat_smile:. It can be never. :wink:

3

Ok if thats the issue, that would suck.

But i’m using now my card since over a year and i never had that issue.

And there wasn’t a update from NVIDIA.

It’s weird :sweat_smile:

4

Use Studio Drivers:

image

5

Just changed the Driver, but didn’t help.

Still the same issue.

6

Does this persist after editor restart?

Just changed the Driver

Studio?

7

Yes and after restarting the Computer.

Yes to Studio (was Game before).

8

Is there any hardware monitoring software you run in the background, overlays, fancy desktop stuff like rainmeter? Anything out of the ordinary?

i was changing some small things in a function inside my Character BP and now it’s flashing and i can’t edit it anymore.

So, essentially, this happened during an editor session and refuses to go away? Peculiar, indeed!

9

No there is nothing in background.

Yes i was adding a function from a component to my bpi function. So just something simple.
Then this happened.

After that i did that:

  1. Reverted what i did (Worked again)
  2. Tried to do the same (Flashing started again)
  3. Going to a other function and tried the same (Flashing started there as well)
  4. Restarting the Editor (Still same issue)
  5. Tried again the same on a other function (On this function everything worked - Other functions still flashing)
  6. Removing the BPI from the Character and add it again (Function is empty, but still flashing - Function inside BPI is not flashing)
10

Try resetting the layout to defaults :person_shrugging: . If that does not help, perhaps you could verify engine files from the launcher.

11

Resetting the Layout didn’t work (I’m using the default, but i still tried it)

It’s current verifying, i will edit if it’s done.

EDIT: Ok after verifying, the issue is still the same.

EDIT 2: Now it’s getting even more weird. Those three Functions are all different BPI’s and i just removed all of them from the Character. Of course i saved and compiled the Character and after i added the first one and this one was fine (No flashing).
I even added all the functions needed inside and still working.
Now i added the second BPI and now its flashing again and even the one i have added first.

EDIT 3: Now i tried to remove all again and added all three. Now it works.
It only starts flashing again if i double click a line to make a reroute node.
But this only appears on those three functions and not on any other lines even on the same BP.

12

This is some uncanny behaviour. At this point I’d copy / paste the script to a new function or redo the actor. Never heard of anything similar before.

13

It was just a small Function so it was easy to recreate in just a few steps.
I was trying not to do copy and paste, because the second time this issue happened, it was happening while i did copy and paste.