When something with the certificates changes (e.g. they go from non-valid to valid) at a system switch, nginx.service is restarted at that system switch, but one has to manually restart it again afterwards to make it service the new certificates.
There seems to be a dependency on an other service that is restarted afterwards.
cc @fpletz
We haven't encountered this problem with the fixes to the acme module anymore. I think this can be closed.
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We haven't encountered this problem with the fixes to the acme module anymore. I think this can be closed.