Item frames and leash knots appear at the wrong location

Oh wait, figured it out; it depends on the item frame's rotation, facing west is fine, rest is not.
NVM, all newly placed ones are invisible, just my old ones are fine

No the item frame is not invisible but it appear far away of the other blocks or other wrong direction

Confirm. All of my item frames are gone! Until the next snapshot, I'll have to go back to using chests to store my maps.

Clarification, all my upgraded item frames are not invisible, are not gone, but appear in the wrong position. It looks like all are shifted to one or a couple particular x-coordinates, at a few varying heights, regardless of where they were. Floating in mid air without dropping. Afraid to hit them in case it would kill their coordinates.

The server still has the item frames at the right place, it’s the client that gets messed up (this can be seen by breaking the block they’re supposed to be on, the item frame drops at where it should be).

Can confirm. From what I've seen, they appear further off target the higher up they are, although this could be a coincidence.

Today when I tried out the snapshot in my world, I noticed the wall where I had placed frames to hold Maps was missing. I ignored it and went to check the other map wall I have a bit away, it was also missing. There is also no hit box so the frames are not invisible they are just gone. 

So I thought, I'd just make some new map walls, pulled a frame out of creative and placed it on the floor, it doesn't appear, and neither does a hit box. I figure the item frame is broken so I go on with my day. I then discovered my maps floating about 100 blocks away from its original location. No frames, just floating maps in an odd stair case pattern, including the lower part stuck between two blocks. They were 100 blocks behind the wall I placed the frames on originally. Very strange. I left the floating maps there for now.

I had six frames placed before updating and all of them went missing.  I found one 60 blocks away along x and 2 blocks lower on y.  I attempted to teleport the frame entity back to the right position which resulted in the frame and map in my inventory.  I tried putting the frame back in the original spot and it showed up back in the same spot 60 blocks away, so it seems repeatable.  After a bit of searching I found a cluster of 4 more a couple blocks from this one buried in the ground.  One more is still missing somewhere.

If anyone is curious, it does not appear to be possible to add a glow effect to item frames.

I was just wondering, if this situation is fixed in the next snapshot, will the item frames that are missing be repaired and returned to where they were?

Impossible to tell, Hank Han. Depends on what the problem with the code is and how it can be fixed.

Have same problem on my server after updating to 19w05a

I started a completely new world in the new snapshot and had the issue with the lead that was mentioned above.   The lead was placed and attached far away from where I intended, and I could not break it.  just took riding the horse a bit to break the lead.

I have been having the same problem with leashes. Tie an animal to the post and the end shoots across the map like power lines

Came here to see if someone else posted about the powerline leads. I started having the same issue with 2 horses. Leads had worked fine recently on 2 llamas. I can't seem to get the leads  back until they break randomly on their own.

Examining the entity data of one of the frames shows the original coordinates and breaking the block that the frame should be attached to does break the frame.  This appears to be just a visual problem so I suspect they will appear correctly once the bug has been fixed.

The x coordinate that they appear at is always the same as their y coordinate. So the code that displays them must be reading their y coordinate when figuring out what x coordinate to render them at.

The worst part is that Elytra doesn't spawn in End Cities now because of this. I hope it will be fixed in the next snapshot.

I'm playing in 19w05a on a server. The issue I've been seeing with the latest snapshot is not the same as what is reported here. However the one that I would say is the same, has been closed as a duplicate.

We originally had item frames sitting on the ground in both the nether and overworld. These frames were empty, or had maps in them. Upon updating to form the previous snapshot, these frames did not render visually, nor could we see the hit box for them, we did have the closed caption show "item frame filled" when loading into the locations where these frames were at.

We had issues in the previous version where they wouldn't load for the client, and logging out and back in would then render these frames. We have tried multiple times though on the new snapshot, without having these frames appear. 

We have also attempted to create new frames and place them, this results in the item frame vanishing. We have tried placing on chests, placing on floors, placing on walls, and placing on barrels, none of which has worked. And again, we have no hitbox for the item frames either, so if we try to interact with where it should be to place an item, nothing happens. It does not appear just in the wrong location, it does not appear anywhere.  As such while likely related, this may not be the exact same bug. But as I said above, the one regarding item frames not rendering at all was marked as a duplicate for this bug.

That is exactly what this ticket is about, they are actually there, just not for the client (they client shows them at a very different position)

In reply to Audri Rock you are correct in the fact that you couldn’t see the item frame at all as well as the hit box not showing (this duplicate you were talking about was mine). Thanks for the comment. It also when I tried did not matter what block I placed it on.

I can confirm what @unknown already said before: the client uses the y-coordinate as x-coordinate. To check this, place an item frame at 0 4 0 and it will end up at 4 4 0. Place one at 3 5 8 and it will end up at 5 5 8. One placed at 6 5 8 will also end up at 5 5 8. One placed at 3 3 7 will appear at the correct spot. Note that the coordinates are about the block where the frame is placed IN and NOT the block where they're placed ON. The same goes for leash knots.

EDIT: You might want to add something like this to the description so it explains the issue better.