See screenshots. I cannot reliably reproduce this behaviour however it seems to only occur when the next comment of the same level is not on the screen, when you can see the next comment on the same level this never happens.
Using the latest version of the Reddit app, the latest version of Reddit No Ads on iOS 14.3 jailbroken with Taurine. I was also jailbroken with unc0ver before and had the same issue.
See screenshots. I cannot reliably reproduce this behaviour however it seems to only occur when the next comment of the same level is not on the screen, when you can see the next comment on the same level this never happens.
Using the latest version of the Reddit app, the latest version of Reddit No Ads on iOS 14.3 jailbroken with Taurine. I was also jailbroken with unc0ver before and had the same issue.