Today, 19th May 2022, my F2P Rogue on Antonius Bayle, Probono, found on login that her mercenary was suspended. On attempting to correct this, I saw the following text: "You can't unsuspend the selected mercenary because you do not meet the required membership level for it." As this is after the newly simplified grading of mercenaries, I suspect this bug affects all F2P characters, although I have not checked those that I have on Firiona Vie and on the Test server.