Tonga were named as hosts in 2012 but the Government pulled out in 2017, citing financial concerns.
A reopened bid process ultimately led to Samoa being selected as hosts, with the Games currently ongoing here.
The PGC and Tonga Association of Sport and National Olympic Committee (TASANOC) also launched a civil suit against the Government.
Both have been seeking millions of dollars worth of damages over breach of contract.
The PGC believe the "unilateral action" of the Government resulted in unpaid fees, the extra cost of the bidding process to find a replacement and brand damage.
The next step in the case will come in September, with the PGC set to return submissions to the court after it noted defects in their initial claim.
The defects relate to the registration of TASANOC and the PGC.
"Effectively the judge recognised TASANOC exists but in the host city contract it is the Tonga Pacific Games Association and whether they exist," Pacific Games Council chief executive Andrew Minogue told insidethegames.
"Naturally for us of course they do because it is the same body, but they wanted that addressed.
"We contracted with Tonga in 2012, we were the Pacific Games Council registered as a society in New Caledonia.
"In 2014 we changed to a limited liability company in the Cook Islands, so our name and registration status changed.
"He also looked at our claim for damages to the brand and felt that could not really be assessed until after the Games here in Samoa, which we understand."
Minogue also revealed the PGC had encouraged their barrister to seek opportunities to settle the case with the Tongan Government.
This is expected to be assessed over the coming months, with Minogue expressing the view that an out of court settlement would be in everyone's interest.
Tonga are one of six countries to have expressed an interest in staging the 2027 Pacific Games, despite their withdrawal as 2019 hosts.
While the case involving the Tongan Government remains ongoing, it was confirmed that Tahiti's full membership of the PGC has been restored.