Out of Memory Crash because of assets (cover images and audio files) not unloading

[WGzeyu]

I'm not sure if this is a SongLoader issue, but it has been present in all versions since 1.15.0 (nightly), to 1.16.4 (stable), to 1.17.1 (stable), after switching to SongLoader.

I imported 1000+ songs and even with only the core mod installed, it still crashes, almost always in the custom levels screen, the crash occurs when selecting songs / playlist, and if the operation is fast, it crashes in less than a minute.
It does not crash when select/play only OST songs.
It's not a specific song problem either, if I reopen the game and select the song directly from the last time it crashed, it doesn't crash again immediately. The crash always happens when switching songs back and forth.

Could it be that there is a problem with one of the core mods? I've made a Chinese guide and answer questions in the Chinese community regularly, and every day there are many people who experience the same crashes as I do, with high frequency.

The characteristics I can think of that many users in the Chinese community have are:

1. the system language is Simplified Chinese.
2. the presence of a firewall on the network (I make sure the core Mod is properly installed) (without VPN, it would be impossible to connect to Oculus, and connecting to GitHub is polluted by DNS, so many people use VPN).
3. there are a lot of songs (about 1000+) and many people copy directly to SongLoader directory to import songs.
4. there are many songs in the info.dat that contain Chinese or Japanese.

[WGzeyu]

Is there anywhere I can find the crash log?

[WGzeyu]

I posted a video.
https://youtu.be/HoyjODHM8n0
To quickly reproduce the problem so click faster, in the usual even if not operating so fast will often crash, just does not appear so fast.

[darknight1050]

This is a known bug, unfortunately I didn't find a way to fix it yet.
To explain it simple the game doesn't unload the cover images of songs, so the RAM will get filled up with that.
I think it is actually a base game bug as it even happens on PC.

[darknight1050]

Reopen so people don't report twice.

[WGzeyu]

I haven't encountered this on PC, maybe because of the larger RAM (32GB)?
I'll try to make a script to compress the cover image and see if it will reduce the crash frequency.

[WGzeyu]

The cover doesn't seem to affect the song hash and I should be free to change it?

[darknight1050]

Yeah on PC it won't crash but in Task Manager you clearly see RAM usage go up. I got to 8GB once when testimg this iirc.

As for testing even if the hash changes the song will still load but it will load it as a new song ofc.

[WGzeyu]

I just found out that the cover image file is not very big, and my songs add up to about 400MB.
Should I focus on resolution, not file size, when compressing images?

[darknight1050]

I don't know actually you have to try.

[WGzeyu]

I don't think it's the cover image filling up RAM that causes the crash.
My total song cover image is 467MB, just now I tried to compress the image, first to 384x384, jpg (5%), total 9.3MB for all images, still crashes, then I tried 128x128, jpg (95%), total 21.2MB for all images, still crashes.
I'll try 32x32 again later

[darknight1050]

Mhh but what else could it be?
Btw you can use https://developer.oculus.com/downloads/package/ovr-metrics-tool/ on you quest to see RAM usage.