What is the problem? Please be detailed.
I'm trying to use "constraint" checks inside begin group routines and these last ones inside begin repeat loop without success.
What ODK tool and version are you using? And on what device and operating system version?
v1.5.0 Release
What steps can we take to reproduce the problem?
Try to insert begin..end..group with internal constraints into a begin repeat loop.
What you have you tried to fix the problem?
try to delete groups and keep just the constraints without success.
Anything else we should know or have? If you have a test form or screenshots or logs, attach here.