I'm having trouble reproducing this, using Amarok 1.4 I can scrobble from both programs simultaneously with no issues, it may be related to Amarok 2. I have however fixed it (I think). Can I ask you to copy the attached file into the MTP-Lastfm install directory (probably /usr/share/pyshared/mtplastfm) and confirm that this works.
I'm having trouble reproducing this, using Amarok 1.4 I can scrobble from both programs simultaneously with no issues, it may be related to Amarok 2. I have however fixed it (I think). Can I ask you to copy the attached file into the MTP-Lastfm install directory (probably /usr/share/ pyshared/ mtplastfm) and confirm that this works.