Hello, I noticed that often pricing of some stocks alternate between GBP and GBX. If you look closely at CNX1 (IE00B53SZB19) there seems to be problem with interpreting the price of shares. At this very moment one share costs around £866 (GBP)/ 86624p (GBX). In the app it says that it costs £86624 (GBP) which is wrong. Looks like there is a problem with sourcing the price and it alternates between 866 and 86624 all the time.
I was not aware until I read this that GPX was a thing! What you describe is the same as if a US stock/ETF price was constantly switching from XX.00 USD ($) to XX00 US cents (¢)!
I really don’t understand why this happens on the stock exchanges side. On the Finary side, have you sent them an email with a link to this post? Please do. I doubt that this is a very well known issue.