ITEM POSITION / SNAP OFFSET bug

There is an item position bug, where the item position / snap offset position is not recognized properly. Snap offset position 0:00 seems to be understood as 0:00.000something. The bug is is revealed through the action 40542.

This problem only occurs at some precise positions, which are different if the tempo changes. With a grid set to 1/4, if the tempo is 142 with a 4/4 time signature, the first bug zone is at 4.4.0. The second is at 8.3.0, then at 10.3.0. More can be found later in the project.

A RPP file that demonstrates the problem is attached to this post.

Please use the action use action "set snap offset to nearest grid line" on the items that are positioned on track 1 to reveal the bugs. All positions before and between those items with this grid line spacing work well.

Here is a licecap to show what the problem exactly is:



This bug has been here for quite a while.

Reaper 4.591 x64, win7 x64, SWS

Discussion here:
http://forum.cockos.com/showthread.php?t=135685