The artifacts have not been selected. No more than 200 artifacts can be selected at a time
2 answers
At the moment, 200 is the maximum number of artifacts which can be selected at the same time (and therefore the maximum number of artifacts on which "Edit Attributes" can be invoked).
As far as I know, this cannot be configured. There only is a setting "pagesize" which configures how many artifacts are loaded at the same time in the module view of /rm, but this is not related to your question (because still only 200 artifacts can be selected).
The demand of selecting more than 200 artifacts is topic of the following RFEs:
Quote from Ed Gentry:
Comments
Donald Nong
Oct 03 '16, 9:37 p.m.Just to clarify, currently the most artifacts that you can display on one page is 200. Do you mean to exceed this limit?
Guindo Niamkey Jean Frederic
Oct 04 '16, 4:52 a.m.Yes, is it possible to exceed this limit?