Welcome to the forums!
Looks like a paint/clearcoat problem to me; but I didn't ride mine (a 2100) long enough to find out how sturdy it was; frame was too small, so I sold it. You could try holding the front brake tight and rocking the bike back and forth against your weight to see if you detect any movement in the affected joint. If it doesn't budge, it's not a guarantee the frame is safe to ride, but if it does, it's a guarantee that it's not.
The 'weave' on the carbon looks completely different form my 2100, though. Do you know what year yours is?
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● 1971 Grandis SL ● 1972 Lambert Grand Prix frankenbike ● 1972 Raleigh Super Course fixie ● 1973 Nishiki Semi-Pro ● 1979 Motobecane Grand Jubile ●1980 Apollo "Legnano" ● 1984 Peugeot Vagabond ● 1985 Shogun Prairie Breaker ● 1986 Merckx Super Corsa ● 1987 Schwinn Tempo ● 1988 Schwinn Voyageur ● 1989 Bottechia Team ADR replica ● 1990 Cannondale ST600 ● 1993 Technium RT600 ● 1996 Kona Lava Dome ●