Intermittent chart rendering error (showing same chart twice instead of showing proper charts)

[shutterfreak]

Describe the bug
From time to time the iOS app renders the same chart twice in a row instead of showing the correct charts. For instance, when I display weather charts, the humidity chart is displayed again instead of showing the pressure chart.

To Reproduce
The bug occurred more frequently in earlier versions than the curren FastLane test versions. Nowadays it’s getting hard to reproduce. I suspect an intermittent display refresh or in-app cache error is the culprit.

Expected behavior
The correct chart (or an empty chart if unavailable) is rendered.

Screenshots
I will try hard to capture a screenshot. Problem is that the error autocorrects whenever I try to capture the screen..,

Desktop:

• Version 2.2.23 (TestFlight FastLane)

Smartphone:

• Device: iPhone 7 on iOS 13.1.2

Additional context
None

[timbms]

Please upload your configuration files sitemap,...

[shutterfreak]

Please upload your configuration files sitemap,...

Here's the relevant portion of the sitemap:

Text label="Past 24 h" icon="chart" {
	Default item=Wx_OWM_Current_Temperature			valuecolor=[
		>=30="red", >=25="orange", >=15="green", 0="silver", <0="purple", <15="blue"
	]
	Chart item=Wx_OWM_Current_Temperature		service="influxdb"	period=D	refresh=3000000
	//
	Default item=Wx_OWM_Current_Wind_Speed
	Chart item=Wx_OWM_Current_Wind_Speed		service="influxdb"	period=D	refresh=3000000
	//
	Default item=Wx_OWM_Current_Humidity
	Chart item=Wx_OWM_Current_Humidity			service="influxdb"	period=D	refresh=3000000
	//
	Default item=Wx_OWM_Current_Cloudiness
	Chart item=Wx_OWM_Current_Cloudiness		service="influxdb"	period=D	refresh=3000000
	//
	Default item=Wx_OWM_Current_Pressure
	Chart item=Wx_OWM_Current_Pressure			service="influxdb"	period=D	refresh=3000000
	//
	Default item=BuienRadar_amount_000_min
	Chart item=BuienRadar_amount_000_min			service="influxdb"	period=D	refresh=3000000
}

[shutterfreak]

I can't reproduce this issue on the latest iOS app (TestFlight v2.2.35 (1570486506)

[shutterfreak]

It happened again this morning.

This time I managed to obtain a screenshot when it happened:

And here's a 2^nd screenshot with the proper charts:

When this problem occurs, it's always a chart duplication in sequence, so I expect there's a timing error somewhere.

[DigiH]

I keep seeing this as well, also with the latest 2.3.5 version, it happens when there are several charts underneath each other, as in shutterfreak's case, and for me with 8 charts in a row. From what I have experienced, it seems to usually be the chart being duplicated which is the first one initially hidden when scrolling up the page. This duplication also means that the chart which should follow is being hidden/exchanged for the duplicate chart. As soon as the chart refresh time kicks in this resolves itself, but it still happens very often.

Example just taken now with Bedroom Left Window being duplicated and exchanged for Bedroom Right Window. After a manual refresh or waiting for the chart refresh time it fixes itself.

[hmerk]

Is this still valid ?

[timbms]

Not heard of in 2 years. Therefore will be closed

[DigiH]

@timbms just because we don't constantly nag, which I think would be bad form, if no comment or solution is heard from the developing side for 2 years doesn't mean it's fixed ;) Trust me, I would have commented this if it was not an issue any longer.

Just now verified with 2.4.47, and yes, it still happens, intermittently as before, but easy to catch on a 4-5th try opening a page with several charts.