Stacking availability rules doesn't work

[Valentina R]

To reproduce set the product duration to 1 hour, interval to 30 minutes and the availability to:

There should be slots at 14:30, 15:00, 15:30, 16:00, 16:30, and 17:00, but the 16:30 slot is missing.

You can try with add-ons as in the original thread (30min duration and addon option for extra 30 minutes) to get the same outcome.

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A temporary fix is to set the rules to this:

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[Valentina R]

It seems it was resolved with the 4.16.0 update (addon plugin update). Waiting for the customer to confirm.

[Valentina R]

closing as the customer didn't reply, but I was not able to reproduce in 4.16.0