Can't print to any device, win64 windows 7 with Supermium 126.0.6478.254 R4

[The-Sleeper]

As stated - couldn't get far enough to check for ongoing stability issues with win64 windows 7 sp1 after ver 119, which continues to be fine... Thanks for your ongoing work!

[martrant]

I confirm the inability of the latest version 126.0.6478.254 to print in Windows 7/SP1 64-bit. It can't print, neither to a hardware printer nor to a virtual printer like the CutePDF utility. However, "Save as PDF" works. Could it be a spooler access issue of 254? It should be noted that twhen attempting to print, he printer icon appears in the tray. Hovering the mouse cursor over it displays "0 document(s) pending for 'username' ", and after a while the icon disappears.

[XakerTwo]

Supermium 126.0.6478.254 R4 @ Win7 SP1 x64

also can confirm, but with another detail
like martrant noted, there notification in the tray. But Adobe' virtual printer also showing small popup with "printing" progress and for "printing", initiated by Supermium, it stay at 0

Acrobat XI popup (seems its progress bugged after "printing" some word docs)

Also i try XPS printer - no luck.

In both cases printing queue is empty

UPD:
Also tested this on

WinXP SP2 x64 (VMWare)
Supermium 126.0.6478.249 R3? x64 - able to "print" with XPS virtual printer
Supermium 126.0.6478.254 R4 x64 - not able to "print" with XPS virtual printer, however file was created and immediately deleted

Win7 SP1 x64 (VMWare, clean, ESU)
Supermium 122.0.6261.152 R6 x64 - able to "print" with XPS virtual printer
Supermium 126.0.6478.254 R4 x64 - not able to "print" with XPS virtual printer, however file was created and immediately deleted

Win7 SP1 x64 (host)
Supermium 126.0.6478.249 R3 x64 - able to "print" with XPS and Adobe virtual printers

Additionally from some moment i getting errors

there two for printing and they looks like

this one when printing is confirmed (appears twice after first attempt)

this one when printing is canceled