I read the following tech note on the dxgrid-queue issue with CA Dir 12 SP14-17.
https://support.ca.com/us/knowledge-base-articles.TEC1626754.html
Now the question is whether it only applied to SM policy store scenario? Any report similar issue when CA Dir is the user store? And if we change the dxgrid-queue=false for the user store, will that cause more undesired side effect than benefits?