Weird issue with music sw

[riffwraith]

Hi

This is a rather specialized and niche area, but am hoping someone might have an idea or two.

One of the sample libraries that I use to write music is by a company called VSL. It's called 'Duality'. When I load a patch in either VEPRo (a host dev'd by VSL) or their own player inside a DAW, long notes cut off after about four seconds. This does not happen with any other sample library I own, of which there are many TBs. Not all of them have long, sustaining notes (ex: single hit percussion libraries), but many of them do. This is the only library where this happens. This doesn't even happen with older VSL libraries on their older player - those work just fine.

It does not, however, happen with the exact same setup on my W11 laptop. In W11, the notes sustain properly, and everything works as expected.

VSL will not offer support here, as W7 is a thing of the past for them. The library is iLok protected, and I have the latest version of the iLok license manager. I have tried hosting the library in two DAWs, Cubase and Reaper, to the same result, so it's not that. I am streaming off of M.2 SSDs in both W7 and W11, so it's not a drive problem. I have more RAM in W7 (128GB total) , so it's not that. My W7 CPU meter is not flipping out when the problem occurs, so it's not that - actually, it's hovering around 1-2%. The W7 CPU is a i97940X, 3.10GHz, 3101 Mhz, 14 Core(s), 28 Logical Processor(s), so that's plenty of CPU power.

The W11 CPU is a i5-1135G7, "up to" 4.2 GHz, 8 MB L3 cache, 4 cores. Which is less of a CPU (save for the GHz), but is there maybe something about the architecture that is affecting how this library plays back? As in, the i9 W7 CPU is not the proper architecture to be able to run W11... I am thinking same idea.

Finally, same bad result in my other W7 desktop, so I am thinking it has to be an OS thing, or a CPU architecture thing.

Does anyone have any ideas as to what I can look at to try and get this working correctly?

Thanks in adance.