poudriere odd error

From: void <void_at_f-m.fm>
Date: Thu, 08 Sep 2022 00:15:06 UTC
Hi, I hope this is the appropriate list for this query. 
I think I'm right thinking that poudriere would be used by lots of devs?

I'm seeing the following output when poudriere starts

ptsort: cycle involving doxygen-1.9.5,2 and py39-breathe-4.34.0
ptsort: cycle involving libgd-2.3.3_1,1 and graphviz-2.50.0_9
ptsort: cycle involving texlive-base-20210325_7 and texlive-texmf-20210325
ptsort: cycle involving texlive-base-20210325_7 and doxygen-1.9.5,2
[00:06:30] Balancing pool

It then carries on building.

Is it a port problem, poudriere problem or a problem with the ports tree?
Need I worry?

TIA,
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