fifo_full / memory_busy

I get MEMORY_BUSY regularly. Pretty much any time I pick up the watch to put it on it will be showing that message.
This is what I've got installed. I just did an update on everything, so these aren't actually the versions I've been running.

• Battery Level Widget (v0.09)
  
• Bluetooth ID Widget (v0.03)
  
• BLE GATT Battery Service (v0.01) - I wrote this, so might be the problem.
  
• Bluetooth Widget (v0.08)
  
• Lock Widget (v0.06)
  
• About (v0.12)
  
• GPS Time (v0.05)
  
• Health Tracking (v0.15)
  
• Bootloader (v0.48)
  
• Bluetooth Music Swipe Controls (v0.01) - Only installed this fairly recently, so presumably not the problem.
  
• Scheduler (v0.13)
  
• Alarms & Timers (v0.33)
  
• Anton Clock (v0.09)
  
• Settings (v0.49)
  
• Launcher (v0.14)