Aw man, i finally fixed my switch not playing any backups anymore! im posting it here, since this method is not part of this OP and some people might find it useful.
i installed atmosphere 0.14.4 on a previous installed atmosphere 0.14.3 and FW 10.2. Added sigpatches but thee atmosphere wouldnt start anymore (kernel panic on boot, when trying to load it via hekate, fatal error when trying to boot directly with fusee primary).
i could not get a fresh install of atmosphere to work. so i tried deepsea and it worked. but no games started and i could not reinstall them. i thought it might be the sigpatches, but just couldnt get my head around it.
today i've read about fixing the archive bit on files on the sd card. tl dr: files could get corrupted, when managing them with a mac, and i did a lot.
fixing that archive bit with hekate 5.3.3 (tools) did the trick. its working now.
best regards.marv