I would like to inform you that this is a known issue. This has already been investigated and a fix was verified for released. The fix is targeted to be released when your Grid Order Management bundle is upgraded to 6.01.0.a version. Please note that this is still subject to change.
Below are the details of this defect:
We have attached this case to the following defect on your behalf. Defect 558627 : Grid Order Management > Custom Role > Edit and Save Transaction > Your search contains a reference to join for which you do not have a permission: Custom
Alternate Solution (Steps):
1. Login as Administrator
2. Navigate to Customization > Scripting > Script (Make sure your scripts page has filters setting as followings: Type=All, API Version = ALL, Script File -ALL-, From Bundle =41296)
3. View link to script for 'GOM Grid Printout Transaction Form UE' with ID: customscript_gom_grdprnt_ue_soformsetup
4. Under its Deployments tab > click transactions the script is applied to.
5. Open each Applied To transaction and click Edit for the Script Deployment > Set Execute As Role = Administrator
6. Click Save.
The urgency level assigned to your defect was escalated to U2. We understand this is a critical defect.