i have a rule that just won't work sometimes it works sometimes it doesn't but it was my very 1st rule i ever did it worked fine with ST now on hubitat it barely works if at all
it is a simple contact open turn on light rule
This rule will just turn the light on when the door is opened. Are you trying to also get the light to turn off when the door is closed? What behavior are you expecting from this rule?
The rule is written perfectly fine (assuming that's all you want it to do; see the above post if you were expecting more, which is probably a more common scenario--but I assume you may have just written this to test; Hubitat Simple Lighting may also be able to handle this, depending on how complex you really want it to be...but, again, a separate issue).
My hunch is this: either something is wrong with "Utility Door" (I assume a contact sensor) or "Garage Light" (I assume a switch/dimmer or bulb). You can experiment with this in a few ways. One would be to go to the device page for each: "Devices" from the left-side menu, then click/tap into the page for the desired device. In the case of the contact sensor, watch "Current States" (upper left) to see if the contact state changes from "open" to "close" as you actually open and close the door. On the page for the light, click "On" and "Off" (or other commands if you know what they are supposed to do) and see if the light responds as expected. Perhaps this will show you that one of these isn't behaving as expected.
If one of these devices misbehaving is the case, there could be a few things wrong. Since you said you use(d) ST, I'm guessing you may either be in the process of moving your devices or have recently finished. The former would mean your mesh network on Hubitat might be weak; the latter may just mean it might take a day or two to settle down. The main questions I'd ask are: what protocols (Z-Wave or Zigbee) are these devices, and what kind of repeaters do you have for each protocol? See these Hubitat docs for more on where I'm going with this: How to Build a Solid Zigbee Mesh - Hubitat Documentation and How to Build a Solid Z-Wave Mesh - Hubitat Documentation. If "Garage Light" is a Zigbee bulb you have directly paired to Hubitat, be especially mindful of the "Tips for Designing Your Zigbee Mesh" section at the end of that document where bulbs are mentioned. If the problematic setup mentioned here is what you have, it could explain the inconsistent behavior you see, and the solution mentioned would be applicable.
In that case, make sure you have good Zigbee and Z-Wave network strength in that area. The articles on Z-Wave and Zigbee I linked to summarize the issues of concern, and I would still try everything else I mentioned (e.g., seeing whether you can reliably control or monitor each device from its page).
One thing I didn't mention: you can turn on logging for the rule (trigger and action logging would be good, at least). Then you can see what RM thinks its doing. Your rule is so simple (and correctly written) that it shouldn't really be the source of the problem here, but it would be another place you could see what is happening ("Logs" on the left as it happens, or there but then click "Past Logs" to check after the fact). This is likely to be less helpful here, I think, but may be something you want to know as well when troubleshooting more complex situations.
Does the contact sensor update the status correctly when you open/close it? When you have seen the rule "fail" have you checked the sensor's value at that time to make sure that it is truly open?
ok so i checked the response time of the switch and the sensor the switch was slow like really slow so i had a new laying around and replaced it the sensor is blazing fast and now with the new switch it still is slow sometimes but it is working again for the most part it's a lot quicker than it used to be its at least useable now
i want to thank everyone for helping me figure this out
What kind of Z-Wave switches were you using? The old "classic" GE Z-Wave models (and a few other brands from around the same time) are widely reported to be problematic on Hubitat, at least under certain circumstances that I'm not sure you have (polling enabled, for one, which you'd technically only need if you physically manipulate the switch and rely on its Hubitat status matching; they don't report back on their own). Regardless, replacing those with a Plus model of any kind would likely be better in all respects--the switch but also your network as a whole (Z-Wave Plus has better range, more bandwidth, through-mesh pairing, etc.).
Just a guess since I don't know what you're working with, and nothing you have to do if you're happy with how it's working now, but just additional information that might help you make a decision. I'd also recommend looking into previous suggestions regarding your network as a whole (mostly for the Z-Wave side given where you've narrowed down the issue to), like what other repeaters you have.
it was a z wave plus switch that's why i was hesitant about replacing it but it seems to have been the problem i have a good mesh i think i have over 20 z wave switches installed mostly zooz i love them but my mesh is zooz and ge i do have some older ge switches(not plus) but they seem to be working good