Particle Build - good code returns error intermittantly

I’m building a project in Particle Build. Upon clicking the [VERIFY] icon, I receive inconsistent results:

  • Sometimes, I receive “Error: Could not compile.”
  • Other times, immediately following, I receive “Code verified. Great work!”

In like vein, when I click the [FLASH] button, it will intermittently fail or succeed.

Separately from that, when I purposely introduce a typo to receive an error, the debug info that would pop up from the bottom rarely appears.

I’m using Chrome with Win10. I was able to replicate the problem with Firefox.