I'm playing on an admin account and everything works.
Any chance you have your inventory full? 'Cause that happened to me, was wondering why I suddenly couldn't pick things up, then remembered to check my inventory, and sure enough, it was full.
Note that MCServer still has some items messed up (potatoes etc.), concerning stacking, so it can happen that you stack something but MCS doesn't process it and the inventory window loses sync.
Please try with rev 1481, I added logging there, so when you get near to a pickup, the console should start spamming with diagnostic info (pickup id, playername, distance), then when the distance gets less than 2.25, you should see a "collected" message in the log, or a reason why the pickup wasn't collected.
Any chance you have your inventory full? 'Cause that happened to me, was wondering why I suddenly couldn't pick things up, then remembered to check my inventory, and sure enough, it was full.
Note that MCServer still has some items messed up (potatoes etc.), concerning stacking, so it can happen that you stack something but MCS doesn't process it and the inventory window loses sync.
Please try with rev 1481, I added logging there, so when you get near to a pickup, the console should start spamming with diagnostic info (pickup id, playername, distance), then when the distance gets less than 2.25, you should see a "collected" message in the log, or a reason why the pickup wasn't collected.