Just got news of the border checkpoint Sa Kaeo. The person left was thinking to come directly back for a new Visa Exempt Entry. He get stopped, Immigration in Cambodia enfored their rule that you have to stay minimum 1 night inside Cambodia before you can travel back into Thailand.
Thanks to Marc from the Netherlands to inform me.
TLDR : Answer Summary
A recent discussion highlights the enforcement of a rule at the Sa Kaeo border checkpoint, which requires travelers to stay a minimum of one night in Cambodia before re-entering Thailand. Previously, this rule was not strictly enforced, and many would cross and return the same day. However, travelers are now experiencing issues, including fees and refusals at the border. Participants shared experiences, noting changes in procedures, and emphasized the importance of being aware of current regulations when planning border trips.