Pathfinding Functionality Stopped

Hello,
We developed and launched Zombie Season late last year and haven’t made any changes or updates to the experience since. We only recently realized the AI pathfinding system has completely stopped working and our Zombie either sand still or just hop in the wrong direction. The intended behavior is they spawn into the level at various destinations and all move towards the central building the players have to protect.
We believe this to be a Roblox studio or feature update because we are not getting any errors in our console.

We read on the forum this could be breaking due to smooth terrain and could have been triggered by a Roblox update.

Link to video recording

Any guidance or quick fixes that you have seen fix this would be greatly appreciated!

Best,
Litle_snacks (Nick Cicchetti)
MediaMonks

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Thanks for reporting this. We did make an update to pathfinding early April this year. Do you know when did this start happening. This is the first report regarding Pathfinding completely not working since the update, so unfortunately I dont have a quick fix. We will investigate and get back to you.

Pathfinding in roblox has a lot of bugs. please fix it, i also reported a bug in https://devforum.roblox.com/t/roblox-pathfinding-is-broken-and-gets-stuck-on-wall-edges/3028213

Could you please file a seperate bug for this and share the repo file as well.

It wont let me post in bug reports

Hey there please check this thread with the latest on bug report access: The Big Bug Reporting Update

If you have any questions/concerns please start a DM with me so we don’t go further off-topic on this bug report!

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Closing the loop on the original issue for future visibility - We recently improved pathfinding behavior when some parts are very far in height/depth and return Failure for the requests to avoid OOM crashes. In this case, we worked with the developer to adjust the distance of the parts, which was sufficient to avoid this early-out behavior while still meeting creative intent.

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Pathfinding is still very broken. We have issue where pathfinding modifiers(Radius and height) dont always take account, and pathfinding gets stuck on wall corners a lot