previous event settled

Hi
the first event does not have a previous settled event, so the trigger never starts, use a condition block:

AND
     trigger <betting trigger name> number of runs is equal to 0 overall
     or previous triggered events status is settled

overall must be checked or unchecked?

unchecked overall and restarted - it run again

Hi
The trigger logs will show what caused the 30min pause.
You asked earlier about number of runs. From the manual:

"The number of times the trigger with the chosen name has been executed. If "overall" is ticked, this number is cumulative for all markets that have been refreshed since the start of the program. Otherwise this number is counted only for the current market. When the block that the trigger belongs to is set to repeat more than once, this number is reset each time the block is repeated."

So if you untick overall, it will always be zero on the current market (unless you are repeating the trigger in the same market), and the trigger will execute on every new market and not check if previous event is settled.

Most of the example staking plan triggers use similar conditions to this:
AND
     trigger <betting trigger name> number of runs is equal to 0 overall
     or previous triggered events status is settled
http://marketfeederpro.com/learn/triggers/by-tag/tags/staking-plan/
These triggers are tested and function correctly for staking. Please have a look at some of them and see if you can use the basic structure for your trigger.

I do hope you are using test mode for testing your triggers, especially so if you are using staking plans.
If you would like your trigger checked and tested by the trigger development service, please post a request here:
https://community.welldonesoft.com/marketfeeder-make-me-a-trigger/

my trigger have the same option:
"AND
     trigger <betting trigger name> number of runs is equal to 0 overall
     or previous triggered events status is settled"

Why? Because i copied tested trigger and modified it a little bit.

Ok that's good on the conditions and the example trigger.
It is difficult to tell why the trigger stops for 30mins, to me it sounds like a market delayed in settling but I'm sure the answer is in the log.
If you want someone to check your trigger you have a quota of free requests on the development service or you could try posting it on here.

placed this bet more than 30 minutes ago. Still waiting to be settled.

Hi
Your screenshot shows (null) for the market name, and the matched lay bet has no selection name, and there is a blank entry in My Markets where it is highlighted. Clearly something is not right. Please try a new Profile and use Test Mode to see if things are working better in the new profile. If that is not helping then please contact support and I'm sure they will work with you to try and fix it.