Unknown issue is causing gamplay to skip, or desync with the song, resulting in gameplay stutter, lag, etc

[TudioS20]

Issue Checklist

• I have properly named the issue
• I have checked the issues/discussions pages to see if the issue has been previously reported

What platform are you using?

Itch.io (Downloadable Build) - Windows

If you are playing on a browser, which one are you using?

None

Version

0.5.1

Context (Provide images, videos, etc.)

Upon loading any given song, sometimes the game's audio will stutter, or lag. When this occurs, the general gameplay + visuals will stutter as well.

I have a somewhat low-end computer, so bugs will happen to me that aren't actually bugs, but from what I've heard elsewhere, this bug has happened before to others.

Steps to reproduce (or crash logs, errors, etc.)

Just...play a song and see what happens. It's kinda random, so I don't know if it happens with EVERYONE.

[biomseed]

This happens to me too. It's a bug that happened in the latest patch. I think it happens to everyone

[Hundrec]

Can you provide a video of this happening?

[TudioS20]

Sadly, no, I can't. However, I CAN tell you that it has been reported on Twitter. Multiple people have talked about lag spikes and things similar to it.

If you check Ninjamuffin's Twitter, he made a post where he talked about 0.5.1 being released. There's some replies that talk about it.

[Hundrec]

Thanks for the info!
This tweet demonstrates the bug quite well: https://x.com/MajidyMajidy_/status/1840811401683636307

[TudioS20]

What I saw wasn't as...harsh. It was somewhat more...subtle, but yes, that IS in fact, the bug.

[NotHyper-474]

Apparently it's the input offset causing this. Another video demonstrating the issue:

8mb.video-dWi-yFMMw8Ns.mp4

[TudioS20]

Yeah, that's the bug. But my offsets aren't changed. I don't even know HOW to change it.

What I had was VERY mild, only appearing like, a couple times. It wasn't...THIS bad.

[biomseed]

Apparently it's the input offset causing this. Another video demonstrating the issue:

8mb.video-dWi-yFMMw8Ns.mp4

It is NOT the input offset. I have not changed it once in my entire life

[NotHyper-474]

It is NOT the input offset. I have not changed it once in my entire life

Well, I could only replicate it with a different offset. Also I wasn't 100% sure hence the "apparently"

[biomseed]

Well, I could only replicate it with a different offset. Also I wasn't 100% sure hence the "apparently"

Don't worry, I knew you weren't sure

[biomseed]

@NotHyper-474 limiting your fps may actually cause the bug. I changed it to my monitor's, 75 (I'm normal). Try a different fps limit or just 75
They added it to the options menu and it now defaults to 60 which might explain why they didn't notice it while bug testing

[NotHyper-474]

Testing with 30 FPS I've noticed some stutters but nothing like the other video. Can be noticed at 0:03, 0:11 and 0:13

stutters.mp4

[TudioS20]

That's the amount of stutter I have. It's VERY subtle, usually...

I wonder if I should cap the game at 30 FPS too...?

[SEBBY180]

I tried increasing the FPS, and it helps a bit, but it doesn't get rid of the audio stutter.

[SEBBY180]

The more notes are on screen, the more the audio stutters, it seems.

[TudioS20]

Well, regardless, this actually seems to be an issue, and I PRAY TO GOD ALMIGHTY the Funkin' devs see this issue, and fix it ASAP, because...I REALLY don't wanna start work on my mod with...THAT interfering with it, among other issues.

[Squiddu]

I've been recording all the issues I've had with offset since 0.4.x, and my god it just keeps getting worse.. obviously whether or not this specifically has anything to do with offset is still undecided, but it's still a possibility, given the weird minor visual/audio stutters I noticed ever since 0.4.x (where offset seemed to generally at least.. not crash anywhere).

[Johnsen290]

same thing for me, I changed the visual offsets to default 0, did not fix it, working better before the patch
it slowed down the music

Funkin.2024-10-01.18-05-14-726.online-video-cutter.com.1.mp4

before

Funkin.2024-10-01.18-10-56-678.online-video-cutter.com.1.mp4

[biomseed]

Why did you change the title to that Eric? That's not the issue

[AbnormalPoof]

I’m pretty sure it’s because the input offsets are the source of the issue.

Had the same problem when porting over a few charts of mine, but setting the input offset to 0 fixed it.

It’s probably a resync issue (The tolerance is REALLY low now. Kade set the tolerance to 5 ms in another PR compared to the previous 100 ms)

[AbnormalPoof]

Fixed in v0.5.2.

[SEBBY180]

This issue is still in 0.5.2 unless you set the framerate to at least 125.

[KoloInDaCrib]

It's on me for not testing my hypothetical solution (that was accepted n merged n stuff) for a higher range of framerates, I apologize,,,,,

[EliteMasterEric]

It's definitely fixed now.

[biomseed]

It's definitely fixed now.

It's definitely not as some people are still having the issue
It also still happens for me though it's far less significant

[oddMLan]

It's definitely fixed now.

Famous last words

[amyspark-ng]

the issue DEFINETELY still exists

[Hundrec]

It's okay Eric
We're always here to hunt down bugs for you and make sure they're totally fixed!

[NotHyper-474]

Uhh...

8mb.video-TbJ-8nODcJRZ.mp4

Doesn't happen on Windows (although the subtle stutters are still there) and neither on higher FPS, might be because I'm on WSL (kinda like running Linux through a virtual machine) so in here the subtle stutters become way less subtle...

[Hundrec]

Another great remix bug, almost as good as Swing Mode

[Johnsen290]

holy crap, that's really terrible