Hardy - I’m guessing you have a bad tire rim combination. As there is no good standard, some tire-wheel combos are too tight (and won’t go on), and some tires are too loose.
Contenital (and others) have developed a new standard they plan on rolling out in 6-12 months that should address that issue. Right now, high pressure road tubeless is hit or miss, unless you match your tire to an approved-tested rim. High pressure road tubeless also requires a hooked rim. Personally I’m fine with some fast 32mm tires running hookless at >70PSI.