Hi, first off I love Painter, I want that known..
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I decided that I have to write a comment since I have similar issues to this thread.
Specs:
1. Laptop; i7, 8threads @ 3.2Ghz, 16GB ram, gtx970m 3GB (most recent drivers). 1080P
2. This also occurs on my desktop which is of better specs. 2560*1440
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I also see this as an across the board issue as there's several posts about this going back to before v1. ..**But let me add in; I get it, there is alot happening to create those "thumbnails we cant have" and add in that most people have large shelf file systems..(I have one that is over 10GB and I do *not keep texture libraries of mine, in this shelf.) So, I need to find a way to visually sort the Substance assets.
Now please know this..I WANT to sort this massive shelf, as well as the smaller ones..as so I only need to import the needed Substance asset files for each project. AKA: optimized workflow..
but there is no simple way to do this (*YET). Please refer to my post about a new product that is exactly what Substance's Ecosystem needs and needs it asap. Link to forum post.
- I have some brilliant ideas to make Substance, as a whole Ecosystem, much more easy to understand and manage for users through to studio managers/owners.
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Soo, back on topic, I spent half of the day getting 2.5.1 to appreciate my shelf..crashes + black magic for finding files that are not liked by 2.51 so much as 2.5.1 crashes instead of ignoring the file and logging the details. ..and the log file ignores these crashes, as well as the debugging is giving me nothing to go on.. *sigh*.
It took hours to render all of the "thumbnails I can't have".. I think 3.5 hours in total.
It gets strange..Painter sometimes decides to regenerate certain thumbnails.
(sometimes)It gets even stranger!!!! -> when I am working on a project, Painter will begin to refuse loading thumbnails.. and sooner or later Substance is eating 4GB of ram and nearly refusing to work for me(no this is not a heating issue, it's all related to regenerating thumbnails).
**I blame this 100% on too big of a shelf.** Mostly My fault but I also want to give some blame to you guys, ok ? hehehe

..We need a way to manage all of the awesomeness that we and our teams/staffs create..and I have the idea that we all know we all need. My idea can save everyone from shelf chaos while also making life so much easier on teams/staffs/etc.
So let's talk about my idea for a 8)new Substance product that everyone wants, they may not know it yet.
[[ see thread linked above]]