1/ there's a thread from 2015 about the contents of subpatchers disappearing - the original thread didn't come to a happy ending, because it was impossibly difficult to reliably reproduce the problem. It's happened to me a few times, and it just happened again in two subpatchers with contents that took a heartbreakingly long time to get right. At first, I thought I was just doing something stupid, but I'm a lot more experienced with gen~ now and having to consider that there's still some kind of bug that was never tracked down. Was there any progress since that old thread towards solving why this happens?

In my most recent case, the subpatchers were named using the @title attribute and for a long time were fine; then this morning, all the contents were gone and replaced with the default 2 in/1 out addition patch. The only thing I can think of is that I slightly revised my file structure and moved a few things around, but everything remained in the search path, and surely a search path issue wouldn't affect subpatchers (as opposed to abstractions) anyway? I've not had this happen with abstractions, however they were implemented (either just using the name of the abstraction, or using @gen or @file).

2/ In the Inspector window for gen abstractions, there's an entry at the very bottom that says "abstraction". Here's a screenshot:

Screenshot 2020-06-19 at 10.26.08.png

As you can see, there's no reference description, and I've been unable to find a comment about it anywhere in the documentation. There are several abstractions in my gen~ patcher, and they all say the same thing: "abstraction 1". If I check a normal subpatch, it says 0: does this entry simply tell you whether an abstraction has been used or not? This would be a different behaviour to the way things behave for subpatchers and bpatchers in the rest of Max, which name the abstraction.

As a thought, it'd be nice to have the "embed patcher in parent" functionality that's available in Max: is that an option somewhere?

1/ there's a thread from 2015 about the contents of subpatchers disappearing - the original thread didn't come to a happy ending, because it was impossibly difficult to reliably reproduce the problem. It's happened to me a few times, and it just happened again in two subpatchers with contents that took a heartbreakingly long time to get right. At first, I thought I was just doing something stupid, but I'm a lot more experienced with gen~ now and having to consider that there's still some kind of bug that was never tracked down. Was there any progress since that old thread towards solving why this happens? 

In my most recent case, the subpatchers were named using the @title attribute and for a long time were fine; then this morning, all the contents were gone and replaced with the default 2 in/1 out addition patch. The only thing I can think of is that I slightly revised my file structure and moved a few things around, but everything remained in the search path, and surely a search path issue wouldn't affect subpatchers (as opposed to abstractions) anyway? I've not had this happen with abstractions, however they were implemented (either just using the name of the abstraction, or using @gen or @file). 

Two slightly related questions:
1/ there's a thread from 2015 about the contents of subpatchers disappearing - the original thread didn't co

disappearing-subpatchers-and-inspector-for-abstractions-in-gen~

Ha, i was looking for 'embed patcher in parent' and found the 'abstraction' attribute you speak of, too, was almost about to start a thread(because searching the word 'abstraction' gave me alot of other stuff at first, haha... so glad i kept searching tho).

+1, i too am curious what the 'abstraction' attribute does if anyone may have discovered the answer?

> 1/ there's a thread from 2015 about the contents of subpatchers disappearing - the original thread didn't come to a happy ending, because it was impossibly difficult to reliably reproduce the problem. It's happened to me a few times, and it just happened again in two subpatchers with contents that took a heartbreakingly long time to get right. At first, I thought I was just doing something stupid, but I'm a lot more experienced with gen~ now and having to consider that there's still some kind of bug that was never tracked down. Was there any progress since that old thread towards solving why this happens?

I've experienced this many times. I didn't find a reliable recipe either. It seemed most likely to happen when using feedback loops and history, but I can't be sure.

Sadly I don't know anything about the "abstraction" attribute.

Disappearing subpatchers and Inspector for abstractions in gen~