Created group in Client with 196 users. Can pick the group from the Client and email sends to them.

If I try to pick the group using Webaccess - either from new mail or the address book first, get:
D114 Bad personal or system group.

Tried recreating group and renaming group.

This user has very limited access to the client and needs to use Webaccess.

Is this a bug due to the large size of the group?
I created a smaller group and it worked.