Macro keys in Keyboard Setup

Something goes wrong in the macro keys section of Keyboard in Configure.

If I type “a” in the Alone box for Left flag and then select Right flag the Alone box empties but nothing appears in it when I type. Pressing the a key fourteen times, I get the error “Syntax error in validation string”.

After that, even if I switch back to Left Flag I can’t delete or add to what I’ve typed in.

Which build are you using? I tried the 17 March 2020 RISC OS 5.27 build for the Raspberry Pi (and the corresponding HardDisc4 image) and the macro keys setup seemed OK. Likewise, today’s Pi build (and HD4 image) also worked.

Whoops yes that was on an older version, sorry.