Dwarf Fortress: Steam version 53.03 (Linux version)
DFHack 53.03-r1
No other mods
Placing a line of Reinforced Wall all at once does not result in suspendmanager suspending blocking construction. Canceling the Reinforced Wall and placing a line of normal wall in the exact same spot DOES result in the correct construction suspend. Pretty straightforward to reproduce but I can provide pictures if wanted.