Symptoms
While using Autocomplete control in K2 4.6.11 unable to select an item when it contains single quote/apostrophe.
Diagnoses
This is known issue (internal ID 591707) where Autocomplete control does not allow selection when names include apostrophe in run time. This issue is addressed in K2 4611.3 coldfix rollup for K2 smartforms Control Pack 4.6.11 available through request to K2 support.
Resolution
Place a ticket to request coldfix addressing this issue from K2 support.