sometimes working

[carepack]

Hi and thx for this nice piece of software. It's a shame that spotify itself isn't able or haven't the time to sort this bug out. But I have a problem. I'm loading an i3 layout and exec then spotify. I can't figure out whyit' not working all the time and all the time means when I create a new layout. I had an layout that worked but I've decided to rearrange the layout and saved an new one. Since this, spotify won't hold it's dimensions. The window is either appearing on the top of the screen with 100& width or in the middle of the workspace with 100% height.
I'm calling the workspace layout and start of the application via shell script.

#!/bin/bash i3-msg '[workspace=7:] kill; workspace 20; workspace 7:7  ; append_layout /home/micha/.i3/workspace-7.json; exec "LD_PRELOAD=/usr/lib/libcurl.so.3:/home/micha/scripts/spotifywm/spotifywm.so /usr/share/spotify/spotify"' urxvtc -name cmus -e bash -c "screen -D -R -S cmus -m cmus; bash" urxvtc -name cava -e bash -c "\"cava\""

Do you have any hint for that? The result is the same if I only load the layout and start spotify via:
LD_PRELOAD=/usr/lib/libcurl.so.3:/home/micha/scripts/spotifywm/spotifywm.so /usr/share/spotify/spotify