One point in feature class disappears then reappears when zooming

[KatieSelf]

Hello,

I'm using a WebMap to display results from a Survey (using a public view layer). I have the layer in the map twice, once as the raw polygon and once using the 'continuous timeline' style to imitate a point layer.

The issue is that one of my data points within the feature class disappears at certain levels of zoom. It displays fine when zoomed out (e.g. near World scale) or when zoomed in (to around state/provinces level) but there's a mid-range where it disappears. This happens just for one entry, the rest of the feature set displays fine, and happens for both the polygon and 'point' layers.

I've double checked and the visible range is set to cover the maximum extent on both the webmap and in the 'Visualisation' tab of the feature, and it does seems to work for all the other points. I've also tried rebuilding the spatial indices of the private, collection layer from the survey but it didn't have any effect. 

The images show all the points displaying at the zoom out pan, and the highlighted range in which the Southerly point disappears.

Any ideas how to fix this? 

[RussRoberts]

Can you share the web map and I can take a look?

[KatieSelf]

Here's a link to the webmap:
https://www.arcgis.com/apps/mapviewer/index.html?webmap=b84880406dca4abb93cdba8499e1ccd2

It seems to happen to the layer everywhere on AGOL (in the survey display, webmaps etc...) but didn't when imported to ArcPro if that helps.

[RussRoberts]

I think the issue is with the point coming from a polygon feature and isnt a point layer itself. When you zoom out the polygon is so tiny it doesn't need to draw which causes point style being applied to the polygon not to be displayed.

[KatieSelf]

Thanks for the update Russell - that makes sense however it seems strange to me that the polygon would then 'reappear' at the higher zoom scales. Or that the issue doesn't occur in MapViewer Classic.

Ideally I'd be 'auto-generating' a point layer using centroids or similar from the polygon layer, and display the two together. Unfortunately I haven't found a way to do this on AGOL where the points will automatically update when a new entry is submitted. I know there may be a way via ArcPro but I'm not confident I could implement it without disrupting the survey which is currently live. If you have any ideas then please let me know but otherwise I may utilise MapView Classic for some outputs instead.

[RussRoberts]

Created an issue for the 4.x API hopefully have it fixed in the next update. Thanks for reporting!

[KatieSelf]

Quick update: the problem does not persist when using MapViewer Classic, which is interesting.

[MaryEllenPerko]

Hi.  I know this post is a couple of years old, but we are experiencing the same problem with one of our feature classes and I am hoping someone figured it out.  We have a point feature class that we developed in ArcGIS Pro.  We published it to AGOL and several point features appear and disappear as we zoom in and out of a web map.  It appears random, but it looks to always be the same points features. This doesn't happen when we use the layer in the Classic web map.  We've tried running a repair on the feature class and exporting/importing it in various formats.  Nothing has helped.  Did you learn anything more about the issue?

Thanks.

[RussRoberts]

Can you share your layer and we can take alook.

[AnninaRupe1]

I'm having a similar issue, too.

I have a hosted polygon feature layer that I'd like to have points visible at small scales, and then when a user zooms in, the points disappear and the polygon appears. To do this, I have filtered the hosted feature layer to display a subset of the layer. I added a field that's populated with '0' so I can display the features using the "Color and Size" symbology, which makes the polygon layer look like a point. Then, I've added the layer again to the map and customized the polygon symbology. I then adjusted both layers' extents to turn off and on at certain scales.

The layer that's being displayed as a point shows some points and then when I zoom in and out some appear and some disappear. Seemingly random. I've tried downloading the hosted feature class and checking geometry and there are no errors. I've rebuilt the cache and optimized layer drawing but to no avail.

Any suggestions on what to do next would be appreciated. Unfortunately, the data are sensitive so they can't be shared publicly.