I am getting the following error after upgrading to v1.5.0 when compiling bootstrap 5.0.1:

Uncaught ScssPhp\ScssPhp\Exception\CompilerException: $n: 252.6 is not an integer.: vendor/twbs/bootstrap/scss/_functions.scss on line 140, at column 5 Call Stack: #0 function luminance vendor/twbs/bootstrap/scss/_functions.scss on line 123 #1 function contrast-ratio vendor/twbs/bootstrap/scss/_functions.scss on line 108 #2 function color-contrast vendor/twbs/bootstrap/scss/_functions.scss on line 156 #3 import vendor/twbs/bootstrap/scss/_buttons.scss bootstrap.scss on line 19

Version 1.4.1 had no issues. I'm not really sure what else I can add to this, but if you require more information then please let me know.