Hello,

It is 'suggested' that it's best to keep them in pairs.
Having said that... I have vanzolnii , imitator, variabilis and sirensis being kept in groups of 4 ( various sex ratios)
All in exo 18x18x24 high. With out any aggression.
The way I put them together was: purchased the frogs from separate breeders ....QT them all separately... then put them into the enclosure at one at a time. They were all under a year old when doing so; of which I think make a big difference.

The likely and apparent reason for lack of witnessed / aggressive behavior before your move was
because the clutch mates were all growing up together.

IMO, if there is... for example... a 2.2 group or even 3.1 group you would witness all the males calling at some pont.

Your video certinally looks to be male/male agression.
You could give it some time. It may all calm down-just keep an eye on them.
Give them plenty of cover and an easy way to flee.
It looks like the were trapped behind something?
Hard to tell in the video.

Otherwise seperate them and try again in a month or so .....after the male in the lg enclosure has established himself.

If you should end up w additional breeding... offspring or tads should be removed as you do no want offspring breeding w parents.
You especially don't want female offspring breeding w its male parent.

Sorry to hear about the escapes.... Yes.. the cord slides on the exo terra enclosures need to be closed.
I silicone mine in the shut position leaving only the mist tubing entering through one side (one tubing opening).

Just some thoughts