How do I modify my blueprint to make the disappeared platform reappear.

Please describe it in detail, preferably with pictures. Sorry, I’m a beginner.

Somethig like that:

It still not works.

It doesn’t reappear until 10 seconds later. and then disappears immediately.

Change “None” to “Opacity”

It still not working effectively. The problem is that the platform disappears as soon as it appears, and the looming cycle keeps circulating.

Try adding this:

Now I’m able to work basically. The only problem is that the reproduced block is transparent.

It should be like this, then transfer to transparent floor when the charactor jump up above it.