Since the problem doesn’t occur at home it will be harder to diagnose, but cable testing is a good start, not just audio but also power, maybe there is something wrong with the ones you use to daisy chain.
Someone more knowledgeable may be able to comment on using the wireless to power more pedals.
You didn’t say which caline you use, but maybe this helps:
https://www.talkbass.com/threads/caline-effects-pedals-power-supply-reviews.1570202/
I hope it’s ok to post links to talkbass here.
all the best mate