Hey @JoshVe it’s hard to say for sure without being able to troubleshoot in your portal, but my best guess would be that you don’t have tickets with a previous CES survey date.
The filter “Last CES Survey date is more than 15 days ago” expects there to be a “last CES Survey date”, this means if there was never a CES survey sent previously, technically the “last CES survey date” is not more than 15 days ago.
What I would do the avoid this is keep your current criteria, then when editing your filters add in an OR filter and use the same criteria except instead of “Last CES survey date” being “is more than 15 days ago” I would set this to “is unknown”
This will also bring in contacts who have never had a CES survey sent to them!