This could to be related to the job role defined for the employee which might need some changes.
To start with, please refer to the below article on POS fresh setup: Aloha POS Punchh Integration (Fresh Install)
To be specific, look for the "Table Service - Check in, Create a new order entry panel to allow for the 'Check In' button to be available". Please check if the Employee have the same job code as other (who are able to see the check in button)
Please reach out to Punchh Support if issue persists.
In an effort to supply information as quickly as possible, this article has been published prior to a formal technical review, and is subject to factual, grammatical, and various structural errors. Data may be incomplete, misordered, or incorrect.
This additional disclaimer will be removed upon formal review of this article. The standard Punchh Inc. KB Disclaimer still applies, and can be found at: https://support.punchh.com/hc/en-us/articles/360040100273-Punchh-Inc-Knowledge-Base-Disclaimer
If further assistance is required, submit a ticket to Punchh Support. (For help submitting a ticket, click here)