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OW screen exit glitch!

Hello SMW Central. It's been a while!

I'm working with my new hack project (it's kinda a reprise of SZW with better organization), and I destructed all OW instances from SMW to start from scratch with my poor knowledge. Only sprites were not removed because I did not figure out how they work.

However, I seem to get some problem on the first save prompt : it makes appear some sprites morcels with wrong palettes (glitches), and also some unwanted number tiles in the levels. I really don't know why this occurs. I let the screenies show you the deal. Also, here is a joined IPS if someone accepts to try it out.

Thx in advance...

DDL Patch below
Here

Lunar Magic Pic below



Ingame Pics below







I'm not quite certain because I've never heard of it occurring in those circumstances, but the in-level screenshot you posted looks kind of like this bug. You can try applying this patch and seeing if it'll help, but I'm not sure if it's the same issue.

Professional frame-by-frame time wizard. YouTube - Twitter - SMW Glitch List - SMW Randomizer
Thank you Thomas,

I will try it out and see what it gives.

I also think it could be this bug you told me about, since I have OW sprites in the red square and also area enter at the bottom, i.e. extremely near of the boundary.

Oh, I forgot to say that these sprites are automatically removed when resetting the engine and loading .srm data.

Edit 1 : I place my OW entrance further than the boundary and removed all the sprites so it can have a more original-SMW-designed set, and the results renders worse! Now sprites appears before the save prompt and are more numerous... Too odd. I try applying the patch.

Edit 2 : This bug remains even after the patch...
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Hoping someone finds another solution T-T

It's not that bad if we don't find a solution, I'll just have to try again in another ROM. For now I am just having some training with the tools. Let's say I will wait for 1 week.
I don't know how and I don't know why, but the only thing that makes those glitches appear is the save box, not the overworld, not Layer 3, not anything else, just the save prompt and only when in the main overworld.

Once it triggers, it creates a bunch of garbage on-screen on the sprite layer that is kept forever (none of the other layers get affected even slightly). Even if you reset, as long as you triggered the save prompt in that file some glitches will display, you have to create a new file to get rid of the glitches. I can say one thing though: removing the sprites from the overworld seems to lower the glitches slightly.

My best guess is that you have something in your ROM that is corrupted.
Thank you for your testing and your comments RanAS.

I guess I may have to change my base ROM since I used the same for years and this bug also showed up on my previous project, now that I can remember.

I'll also use this tool that can tell me if my rom is clean.
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Edit :
The base ROM I use is clean according to Romclean tool.
I could not manage to find out why my OWROM.smc became corrupted with just a basic OW deleting O_O

That's too odd. I'll try again on a new ROM.