6.90RC6: "Full speed" and "Enabled" buttons random behaviour

This is about the "Full speed" and "Enabled" buttons in the status bar (bottom right).
When you click either with the mouse, they are turned ON (--> Limited speed & Paused) but after a random number of seconds they "automatically" turn OFF again without any user activity.
This is pretty irritating as the expected behaviour is: manual user action to turn those limiters ON, and staying ON until a subsequent user action (another click on them) happens.
Previous versions of Newsbin already had this issue as well, but then the 'timeout' (or whatever it is) seemed longer; now it's mere seconds before your choice is disabled again.
Scenario when this has been observed repeatedly:
- download some large NZBs
- click those words in the statusbar to have them light up and change status while a large(ish) RAR is being **unpacked**.
- observe Newsbin quickly turning those limiters back OFF.
- rinse & repeat while the downloads and unpack actions continue.
When you click either with the mouse, they are turned ON (--> Limited speed & Paused) but after a random number of seconds they "automatically" turn OFF again without any user activity.
This is pretty irritating as the expected behaviour is: manual user action to turn those limiters ON, and staying ON until a subsequent user action (another click on them) happens.
Previous versions of Newsbin already had this issue as well, but then the 'timeout' (or whatever it is) seemed longer; now it's mere seconds before your choice is disabled again.
Scenario when this has been observed repeatedly:
- download some large NZBs
- click those words in the statusbar to have them light up and change status while a large(ish) RAR is being **unpacked**.
- observe Newsbin quickly turning those limiters back OFF.
- rinse & repeat while the downloads and unpack actions continue.