Zipkin link tracing causes Nacos registration failure

[heppytt]

Using spring cloud version Hoxton.SR4 , spring boot 2.2.6, zikpin 2.2.2 started the project, resulting in Nacos registration failure, and the project has been stuck. Have you ever encountered such problems?

[jorgheymans]

@heppytt can you have a look at openzipkin/zipkin#2540 , is this similar ? I'll have a more detailed look in the morning.