*said in Ace Ventura style 
Kinda agree with my wife. Are we really just trying to double check if software problems are fixable with replacement HW???
Fingers crossed this will be your last hardware replacement!!
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My feeling is that they think there is still value in evaluating the returned hardware to help them identify the root causes and rule out hardware vs software issues.
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It sure would be nice if they could tell us here what is going on with all these failures.
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Second! 
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This replacement is in response to improperly detecting a car/obstacle along the path and returning to the charging dock or occasionally not being able to make it back to the charging dock(that scenario only rarely happens) and it’s been happening all winter along the path that the mower pro had very little problems with.
Thank you for your continued patience. I want to give you an honest update — our engineering team is still investigating the root cause of this issue, and it has proven to be more complex than anticipated.
Given the extended timeline and the inconvenience this has caused, I have submitted a request to send you a replacement Core unit. We believe this may help resolve the issue, as it could be related to the specific hardware or firmware state of your current Core.
The thing that really bothers me is that I’m on my 2nd core since this started happening…it happened on both cores…I’ve also had the blower replaced…so I really doubt it’s hardware related…like performing a factory reset might make sense or something but it’s got to be expensive to ship cores back and forth…and until they get the area/sidewalk settings sync’d to the cloud I’d rather just deal with my current core
Wow. Pretty frustrating. You’re probably right - it’s not a hardware problem.
Maybe you could offer to help diagnose the issue by using BOTH cores to see if the problem can be replicated on the replacement core.
I’m thinking first test the new core by making a brand new simple map. It’ll probably work fine. Then afterwards, have them transfer your old map to the new core and see if the issues reoccur.
You can self transfer with the cloud backup and restore. So he could test both scenarios pretty easily.
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I know it’s not trivial to setup a replacement core for the end user. It’s not terrible, but also can be a hassle. It’s definitely not cheap to be shipping cores/modules. But there is a LOT of independent components inside the core that all have firmwares/software that Yarbo doesn’t necessarily have any control over. I think they feel that it’s probably something with the hardware, but aren’t quite sure. Most likely a camera (my guess based on your description of the issues) and this is the easiest solution they can offer vs disassembling the core to replace components. They can get your old one back and tear it apart and confirm or deny their suspicions without further inconvenience to you. And, if it’s software, they can find the root cause, develop a fix and push it out to everyone. So while it may not immediately resolve your issue, long term everyone wins. But, hopefully it does fix your issue and you get immediate resolution.
Either way, I think it says a lot about their customer service that they are willing to bear that expense to save you further trouble and frustration. At least, I believe that is their intent. Some people get hung up on the number of replacements, but it is their policy. You have an issue, they ship you a replacement (no upfront costs, no deposit holds, etc) and you ship your broken thing back after you get back and operational. This is what was explained to me was their policy when I Pre-ordered in June of 2024. So when people go I’ve had 4 core replacements, I think about this policy and go man, the company is bending over backwards trying to make it right with the customer. I hope one day that they won’t need to do this as often and it’s only for extreme cases. I think they’ll get there. But I think most of the issues are software derived and being such a complex system, right now onsite diagnosis of the hardware is the quickest path to resolution.
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Wouldn’t it be an issue with the S1 cameras though?
Depends, it does use the other cameras as well.
I do appreciate the core exchange, it’s really fast shipping too! I just think if it isn’t a hardware issue it could be a waste, I’d rather just have them say they’re working on the software, and save the resources.
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For obstacle/vehicle detected on a pathway?
Yep, I believe it does use the side cameras as well. Not 100% on that though. And they did just recently replace your S1.