I reported this bug in 8.23 or 8.24 flex placements. Now it still bites in the new solo placements.
After a remake, you get your provisional rank as if you had lost.
I haven’t finished the solo placements yet, but on the flex placements I also saw that the remakes counted toward the game count for placements, so a remake was really counted as a loss. Both remakes from you and from the enemy count as losses.