detection of uc mode in some times

[Magic4k]

by signing up in website "https://www.kucoin.com/ucenter/signup" using phone number , hcaptcha appears and bypass successfully but in some cases after doing this task repetitvely it doesn't pass the hcaptcha I want to know what is the problem here noted that I use sb.driver.type() , sb.driver.uc_click() methods and here is my snippet of code :
``
with SB(uc=True) as sb:
url = "https://www.kucoin.com/ucenter/signup"
sb.driver.delete_all_cookies()
sb.driver.uc_open_with_reconnect(url)
#write phone
sb.driver.type('#account > input',phone)
#changing the country code by openning list
sb.driver.uc_click('#account > div.KuxInput-prefix.lrtcss-18ia7lk > div > div > div > span')
#searching for neigar
sb.driver.uc_click('#account > div.KuxInput-prefix.lrtcss-18ia7lk > div > div > div.KuxDropDown-popper.KuxDropDown-
open.customDropdown > div > div > div.overlayHeader > div > input')

        sb.driver.type('#account > div.KuxInput-prefix.lrtcss-18ia7lk > div > div > div.KuxDropDown-popper.KuxDropDown- 
                                                                       open.customDropdown > div > div > div.overlayHeader > div > input',"234")
         
         #Clicking on Neigar                                                             
        sb.driver.uc_click('#account > div.KuxInput-prefix.lrtcss-18ia7lk > div > div > div.KuxDropDown-popper.KuxDropDown- 
                                                                    open.customDropdown > div > div > div.overlayBody > div > div.KuxBox-root.lrtcss- 
                                                                       loshnn > div > span')
        
        #clicking on creating account                                                              
        sb.driver.uc_click('#root > div > div > div > div > div.lrtcss-1cagiq7.essyzlb0 > div > div > div > div.lrtcss-1gkb030.ex3bcaf27 
                                                                  > div > form > button')
        
        #Switching to iframe                                                         
        sb.switch_to_frame("/html/body/div[6]/div/div/iframe")
        #clicking check box
        sb.driver.uc_click('#anchor-tc')

``
(also noted that : if I stopped the script for a while (2:3 min) and then rerunning it , bypasses successfully)
what is the reason here , what do u recommend to do in this case ?
Thanks in advance for your great effort at all ♥

[mdmintz]

You mentioned: "after doing this task repetitively it doesn't pass".
That means your IP Address was blocked for unusual traffic.
When that happens, you have to switch IP addresses (via the proxy arg).

UC Mode only prevents websites from detecting your automation directly.
It doesn't stop websites from guessing that you're a bot if the web traffic looks unusual.