It's not a cache problem because I clean always firefox before turn off my pc.
From the link you gave me i can download the old version.
I see this :
Separate Parts (Violin, Viola) - Manuscript
*IMSLP #18089 - 14.08MB - 45 pages - Scan Quality: No ratings yet - V/V/V
But when I download I get the old file of 6.55MB ...(with the round logo: XXXXXXXX )
I replaced all Rolla files , today Hans Sitt Viola concert and concert pieces too, and always the same problem. I replaced with success the most part of rolla viola concertos.
It's strange because if files replacement work it should be work for all files.It's not so.I replaced all Duos by Rollas but untill now I get only the old version. I tried to download on other pc but the same problem so I think it's not a computer problem.(I see the new file but when dowload start I get the old one)
Suggestions: and if you would delete permanently from imslp the old files could it help?