How to you want to open this file keeps coming up repeatedly for .jpg extension

using directory opus (5215) and running win10
file association is set for .jpg extension, works fine with file explorer, just cant remember in directory opus
how can i get directory opus to remember what program is the jpg default app

That has been addressed in Opus 11, but won't be fixed in Opus 10.

(Opus 10 was released over 4 years before Windows 10, and the last Opus 10 update was over a year before Windows 10.)

As a workaround, if you configure the Opus viewer for double-clicks on jpeg files, or most other viewers (just not the Windows 10 'metro' pictures app), it should work even in Opus 10.