Why number of added mangas is different from scheduled?

[vonProteus]

i have added 13 mangas some time ago but scheduled column under activities show only 9 now
should i be worried?
how to fix it?

i remember seeing 13 at one point

[vonProteus]

i did this

#!/bin/bash -e

IDS=$(curl 'https://kaizoku.lan/api/trpc/manga.query,library.query,manga.history,manga.activity?batch=1&input=%7B%220%22%3A%7B%22json%22%3Anull%2C%22meta%22%3A%7B%22values%22%3A%5B%22undefined%22%5D%7D%7D%2C%221%22%3A%7B%22json%22%3Anull%2C%22meta%22%3A%7B%22values%22%3A%5B%22undefined%22%5D%7D%7D%2C%222%22%3A%7B%22json%22%3Anull%2C%22meta%22%3A%7B%22values%22%3A%5B%22undefined%22%5D%7D%7D%2C%223%22%3A%7B%22json%22%3Anull%2C%22meta%22%3A%7B%22values%22%3A%5B%22undefined%22%5D%7D%7D%7D' --compressed | jq ".[0].result.data.json[].id")

for ID in $IDS;
do
	echo id $ID
	curl 'https://kaizoku.lan/api/trpc/manga.update?batch=1' -s -o /dev/null -w "off\t%{http_code}\n" --compressed -X POST -H 'content-type: application/json' --data-raw "{\"0\":{\"json\":{\"id\":$ID,\"interval\":\"never\",\"anilistId\":\"\"}}}"
	curl 'https://kaizoku.lan/api/trpc/manga.update?batch=1' -s -o /dev/null -w "on\t%{http_code}\n" --compressed -X POST -H 'content-type: application/json' --data-raw "{\"0\":{\"json\":{\"id\":$ID,\"interval\":\"0 0 * * 7\",\"anilistId\":\"\"}}}"
done

and get as an output

./reenable.sh 
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100 12065    0 12065    0     0   166k      0 --:--:-- --:--:-- --:--:--  181k
id 1
off	200
on	200
id 3
off	200
on	200
id 9
off	200
on	200
id 5
off	200
on	200
id 12
off	200
on	200
id 8
off	200
on	200
id 6
off	200
on	200
id 4
off	200
on	200
id 11
off	200
on	200
id 14
off	200
on	200
id 7
off	200
on	200
id 2
off	200
on	200
id 15
off	200
on	200

and the number of scheduled increased to 10 which means that 3 are still missing
any ideas what may be going on?