Are your settings aggressive?
Not at all man. About 150 follow/day and 100likes/day
You're right, that's not aggressive at all. Did you used to run the account aggressively in the past ? What type of link do you have, cpa? Set your max numbers at not flat numbers, i.e. 79, 83 instead of 100. If you're doing the exact same numbers a day that's a likely footprint. Also, are you running 7 days a week?
I have link in the bio, but not all of them. Only 8 out 16 accounts had links to my pre-landers. Each prelander use a different .tk domain. I never set them to run more than 200 follow/day.
Read my edit to that last post. And that .to domain is no good, that's the same as using a bit.ly - I only use .net, .org, .com and a few other cheaper domains. The cheaper ones only cost me $1.50- $2.00 a pop. Most free domains are usually seen as no good because spammers frequent them. I would let the account(s) rest for a few days, make the suggested changed and see if it clears the issue. Sometimes if the account is already flagged as a possible bot you'll continually run into issues from there on. But you never know, some time off may help it.