image -URL in webpage damaged

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This image URL1
[z r l=https://hub.libranet.de/photos/flegno/image/c23221e8d3ffec8cb00001695d3424bfca72ec037415203021aec8971ee4341e][z m g=444x298]https://hub.libranet.de/photo/c23221e8d3ffec8cb00001695d3424bfca72ec037415203021aec8971ee4341e-2.png[/zmg][/zrl]

in Webpage was seemingly inexplicable damaged. I attached the image repeatedly. Here new working image-URL2:


[z r l=https://hub.libranet.de/photos/flegno/image/ecdd9a77c7a3bd59f83c73e14d11135cfc6efe85cb78ad7a969acbcd14809e8f][z m g=444x298]https://hub.libranet.de/photo/ecdd9a77c7a3bd59f83c73e14d11135cfc6efe85cb78ad7a969acbcd14809e8f-2.png [/zmg][/zrl]

Any ideas, why the image URL1 damaged? @Hubzilla Support Forum+