Multiscrape CSS escaping

I’m doing a lot of multiscraping but this one is having me puzzled.
The abba-ccs-selector is giving me this;

.col-span-2 > .m-0 > .\_root_1rmvd_29 

Normally one would think that the backslash should be escaped by doubling it, that doesn’t do the trick, nor single or double quotes… :frowning:
Log says: “Sensor x was unable to extract data from HTML”

Is there more to be escaped or another way?