Got it. I did test follows and it looks like there are no follow notification on the followed account. Might need to rest the affected accounts for a day or two.
FYI - my accounts only run for about 12 hours a day but they only do follow + dm, no other actions.
The main issue is so hard to detect and if the account keeps performing the follow action with the SB it will eventually be suspended/PV. I’ve just applied the general rule of 24hrs after 48hrs seems to keep the accounts safe and functioning, 50 - 70 is ok, if you`re still getting SBs you might need to low this!