Yesterday facebook marketplace ads will display until one tries to view the ad. The screen will act as though it is opening and then go blank.
The problem also was present using the Firefox/Mozilla browser. I was able to get around it by using their VPN.
I tried Opera's VPN as well as adding Facebook and Facebook Market place address (below) to the exception list on Operas Ad blocker https://www.facebook.com/marketplace/?ref=app_tab
all to no avail.
there are some that claim Facebook detecting an adblocker is the cause? Turning it completely off, closing on reopening Opera and then FBMP had no effect
I tried posting screen shots but keep getting the following message

Ay help appreciated as I am hooked on OPERA

As of this morning all is working again Possibly a fix was implemented?
Thanks to those that at least looked at the posting