Hi! I'm facing quite odd issue, when uploading file bigger than 10-15MB, it throws connection returning 502. And I'm sure not the code is the problem, cause I have no panics, no logs, it does not even get to the handler.

I have no cloudflare or anything, no proxy, no load balancer. I've seen that this case is not unique (like this one: https://station.railway.com/questions/increase-max-file-upload-with-php-nixpac-8e47f9b1)

We're already started rewriting to presigned urls, but feels like there's a bug or something in railway

Here's the http log:

requestId:

"J2OKuUuXQKmwZi_-m3z_FQ"

timestamp:

"2025-10-22T12:34:31.853755761Z"

method:

"POST"

path:

"/project/media"

host:

""

httpStatus:

502

upstreamProto:

"HTTP/1.1"

downstreamProto:

"HTTP/1.1"

responseDetails:

""

totalDuration:

110441

upstreamAddress:

"http://[fd12:2fe2:4e73:0:1000:4c:69b2:dd08]:8080"

clientUa:

"PostmanRuntime/7.49.0"

upstreamRqDuration:

110441

txBytes:

11

rxBytes:

16810891

srcIp:

"5.129.236.84"

edgeRegion:

"europe-west4-drams3a"

upstreamErrors:

""