Look, they are nowhere closer to a commercial PBR then they were 1 year ago. This is sad to see and painful for shareholders. This is what happens when companies don't act responsibly and provide full disclosure to shareholders.
They have grand ideas and inform the shareholders about those ideas. But when it comes to producing a product or funding they fail miserably.
How much talk was there about the 5 million in funding? Now it's on hold for a government grant?
I would guess that if it is an air filled ball they would need more air pressure in it during high pressure conditions. If it is a foam or sponge ball it just needs to be of a stiffer material. I think the best thing to do is remove the pig until the system pressure is stabilized.
The important thing about this is they identified a problem and developed a solution and implemented it all in a couple of days. That is a solved problem now.