Unbounded scroll/marker jump: Markers disappear

[S-Man42]

What is the bug?

(Better quality: https://s-man42.de/flutterMapMarkers.gif)

I tried to add two markers to my map (which I connected by a polyline which crosses the date border). Zoomed out (low zoom level), when scrolling I find a moment in which all markers disappeared - but they re-appear some moments later.

Zooming in, I can reproduce that all markers completely disappear whereas my polyline is still visible.

I am not sure if it is a bug or I miss some settings...

How can we reproduce it?

I hope it is just an issue on my side e.g some settings, otherwise I will try to extract the essence out of my map code furtherly.

I am using the flutter_map_marker_popup from this current merge request: rorystephenson/flutter_map_marker_popup#86

Do you have a potential solution?

No response

[monsieurtanuki]

It's probably fixed with the latest github code (which is ahead of the latest official version).

[enricostrijks]

Once #2046 is released I will update the flutter_map package in my repo to that version @S-Man42 in the meantime we just have to wait for that to be merged and released.

[JaffaKetchup]

@enricostrijks @S-Man42 Does the issue still occur with the latest code on v8.1? #2046 looks like it might be unrelated?

[S-Man42]

I'll check asap

[JaffaKetchup]

For the time being, I'm going to assume this is resolved. If not, please feel free to ping me and I'll re-open!

[S-Man42]

Sorry, unfortunately I didn't had the time to check far due to personal issues. But I did not forget it. I will do next week I hope.

[scapin01]

Hello @JaffaKetchup , with the version 8.1.1 it is still reproducible.
Steps:
-> Clone https://github.com/enricostrijks/flutter_map_marker_popup.git
-> Upgrade flutter_map to 8.1.1 (i's currently 8.0.0).
-> Start the example application.

The Markers are only visible at certain zoom levels:

[JaffaKetchup]

Does the issue occur with native Markers?

[scapin01]

Does the issue occur with native Markers?

Not it does not occur with the native markers. After further investigation, I found out that 'MarkerLayer' was not adapted in the flutter_marker_popup package (at least in the fork with changes by enricostrijks) to the newly added multi world feature. So it seems it's not an issue with flutter_map directly.