No typekeywords returns when searching groups

[Vincent-Wei]

Hello,

I created a group with a typekeywords "spark-worksapce" on Sep 14, 2021, at the beginning I can get the typekeywords from the groups search API, now I can not, I am sure the typekeywords is there.

https://www.arcgis.com/sharing/rest/community/groups?f=json&q=id:(c2abd8632de84645b5cac4263fd08a21 OR 9e66559e7c4e4ddb8d1ba0c56f30a65c)&token=***

No any typekeywords is returned for group c2abd8632de84645b5cac4263fd08a21

https://www.arcgis.com/sharing/rest/community/groups/c2abd8632de84645b5cac4263fd08a21?f=json&token=*** 

I can see the typekeywords here.

Is this a bug or something wrong with me? thanks.

BTW, that's ok for the new group(created today), only it's wrong for the old groups.