Codes get corrupted by Polylang

Hi there

We are using the getbooked.io plugin to place appointments on a multilingual website(NL & FR) and Polylang to translate some strings.

There is another translating plugin installed: Loco translate. All the coded strings are supported to be translated but the field we are talking about underneath is filled in on the admin site by us.

However there are some fields that have strings with code around it like:
[{\”name\”:\”single-line-text-label—3460500\”,\”value\”:\”Téléphone\”}

and they get corrupted by the plugin. For example:

Original custom field
{"name":"single-line- text-label---10742773","value":"Number of adults (max. 6 /// 1 adult person + 1 child allowed per scooter)"},{"name":" single-line-text-label---8652445","value":"Number of children (max. 6 /// 1 adult person + 1 child allowed per scooter)"}
Translated custom field(Francais')
{"name":"single-line-text-label---10742773","value":"Nombre de personnes adultes (max. 6 /// 1 personne adulte + 1 enfant / scooter)"}, {"name":"single-line-text-label---10742773","value":"Nombre d'enfants (max. 6 /// 1 personne adulte + 1 enfant / scooter)"}
You  will notice that the label "single-line-text-label---8652445" for "Number of children (max. 6 /// 1 adult person + 1 child allowed per scooter)" has been altered and is now "single-line-text-label---10742773" in the translated version.

Is this something you have experienced before? The plugin developer is open to discuss the options with you.
The concerning site is https://enroute.dupontwebdesign.com/ this is a staging site btw.

Thanks in advance
Kind regards, Bram