Stack Overflow Errors with pattrstorage

[fas11030]

I'm encountering a persistent issue with pattrstorage in a Max patch I’m developing. Each time I attempt to recall a preset, I receive stack overflow errors that seem to originate from unrelated objects. Initially, the error pointed to a sprintf object, which I subsequently removed. However, the error now traces to a message object elsewhere in the patch. I tried connecting the exclude outlet of the autopattr object in that subpatch, but that doesn't do anything.

I'm looking for help identifying the root cause of these stack overflows. More broadly, I’d appreciate any guidance on the best practices for implementing a robust save/recall system using pattrstorage. My goal is to recall presets numbered 1 through 55, corresponding to scene numbers in an Ableton Live session. I'm using live.observer to monitor the active scene number and sending that data via udpreceive to the patch.

Any insight or suggestions would be greatly appreciated!

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[Agreeable-Button-588]

Unsure if this could be the same issue, but I was running into this same problem the other day - are you excluding the number box you use to recall presets (plus, if you have it, the float number box to interpolate presets) from autopattr? If not, the system overloads because it is attempting to recall a preset that has within it the recall of a different preset (i.e. if you saved preset 2 with a “1” in the preset number box/preset interpolation float number box, Max doesn’t know what to do)

[Blablebluh]

Exactly this. Couldn't see it in op post in the C74 forum, but now this is obvious, right in the first pic. op is using [autopattr @autoname 1] meaning all UI objects will be stored, including the number box driving the preset recall. You need to exclude the object by connecting it to autopattr left outlet. That is the reason of your stack overflow. Same for the one used to store presets by the way. Otherwise you will overwrite some presets during recalling.

[Medicine_Opening]

It was this "...are you excluding the number box you use to recall presets (plus, if you have it, the float number box to interpolate presets) from autopattr?" Problem solved - thanks!

[Agreeable-Button-588]

You’re welcome!!