I have a similar question,
Is it ok (safe) to put a plus module between a grey and a faces(I) bottom ?
And thank you for looking into this and the quick workaround
(It also seems to work when I put that line in an "Execute" block)
While you are fixing this, you might also have to take a look at the "After send message" block, now that I've got the send working again, it looks to me this block does not return a value.(it did in 1.4.5) I can again provide an m5f file if you'd need it.
Not sure if this belongs here (only bug related area i can find)
ESP NOWis not working properly in firmware 1.6.1
I tested this on m5stickC and core basic, it only works on firmware 1.4.5, not on later versions
in fact its the sending that gives an "interface error", receiving seems to work fine
(I'm using UIFlow btw)