Hi Douglas, 
Not sure about dip in their rpki monitoring page for lacnic, but I could see the VRP here
https://rpki.cloudflare.com/rpki.json

The daily snapshot taken at 23:47 22-04-2021 using rpki.cloudflare.com shows the prefix.

cloudflare# grep 200.160.0.0 2021-04-22-2347-UTC
+ 200.160.0.0                                 20 -  24        22548

rtrclient tcp -k -p rtr.rpki.cloudflare.com 8282

Regards,

Aftab A. Siddiqui


On Fri, 23 Apr 2021 at 05:50, Douglas Fischer <fischerdouglas@gmail.com> wrote:
Does anybody else have problems with Cloudflare's RPKI Validator with prefixes from LACNIC?

Customers were sending us some reports of issues with LACNIC's IPBlocks using Cloudflare RPKI as source of validation.

A friend and I did some checks. And looks like that some issue is happening on the Lacnic Trust Anchor, specifically on OctoRPKI.
We took the Registro.Br Prefix to do the tests -> 200.160.0.0/20 -> AS22548

 -> On Cloudflare
https://rpki.cloudflare.com/?view=validator&validateRoute=22548_200.160.0.0%2F20
AS22548_200.160.0.0/20 is Unknown at 19:30 20201-04-22
https://pasteboard.co/JYy8fjI.png

-> On Ripe
https://rpki-validator.ripe.net/bgp-preview
AS22548_200.160.0.0/20 is Valid at 19:30 20201-04-22  
https://pasteboard.co/JYycsd4.png

An interesting thing is that on the graph of ROAs over Timer of the Lacnic Trust Anchor shows a big drop on 20201/04/19.
https://rpki.cloudflare.com/?ohlcTa=LACNIC
"Volume Removed: 14.761"
"ROAs Removed: 13.392"
https://pasteboard.co/JYyeSaw.png

Any idea of possible causes?
Any suggestions on how to solve it?

--
Douglas Fernando Fischer
Engº de Controle e Automação