I've heard of other complaints along these lines, but I have no personal experience with them, and no, there's no chance that that would be the cause of a single cylinder having no compression - if that were it all four would be affected.
This is where a leak down test will answer questions - or if you don't have a leak down tester, rig the compression tester so that you can pump low pressure compressed air through the spark plug hole - remove the oil filler cap and listen to hear where the air escapes, through the oil filler cap, it's past the rings or through a broken piston, through the intake or exhaust, it'll be one or more valves not closing.