puckjs, v199 - unable to connect and slow

I have nothing wired to any of the Pucks.

PuckJS FC05

• still slow first time today.
  
• hard reset -> speedy. works great for now. 😋
  LATER EDIT - after 10 minutes, reconnect via webIDE, slow again. hard reset. speedy again.
  
  

PuckJS CB34

• drained a new battery to 2.26V
  
• put a new battery. hard reset. still no connection 🤯
  
• self-test - blink green.
  
• weird as the MDBT has some discolouration on the shield (battery leak?) - it was in the silicone case all the time