Most obvious one is that on May 4 GM says both he (at 9-ish) and Kate (at 10) entered the apartment via the front door. On May 10 both entered via the patio door. &%+((£
If the PJ thought Gerry had lied in his first interview about which door he used - then questions would have been asked and his answers would have appeared in the summary of the second interview.
However, no explanation at all for his correction of the statement was given in the summary. IMO this is because it was established that it was a misunderstanding which took place between GM, the interpreter and the PJ officer somewhere along the line. That
was the first interview to take place for all concerned. The fact that there was confusion about the doors, due to some people referring to the front door as the back door and the patio door as the front door was mentioned by the UK police.
This has already been discussed at great length previously on this forum.