"Insufficient Buffer to Serialize Data" Resulting in Elevated Ping

Bug Reports Engine Bugs
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#1

Our users have begun reporting worsening ping in the ranges of 20 - 25% worse in servers as time goes on (reports occurring since February 14th). Upon looking into this issue, MicroProfiler dumps appear to show us that RakNet indicates we’re running into an “insufficient buffer to serialize data” issue like the image below:

image
image918×458 61.4 KB

(apologies for the bad quality, the image is a screenshot of a screenshot)

Affected experience in question:

Expected behavior

Revert or fix the changes made and make ping good again

#2

Hello.

Could you capture and attach a microprofile from when this issue is occurring? That may be helpful in determining what is contributing to the regression in observed latency.

#3

log_C2B1E_microprofile_20250228-161014.html (1.4 MB)

#4

Hi @hello42 ,

Sorry about this, I am currently looking into this issue - how long does it usually take before the ping worsens significantly? Do you also have example values for how ping might change over time?

Please let me know if there are any specific repro instructions.