'starrating' misbehavior or personal dislike since v5.2

Dear all!

I am running webgrab+plus for two years for Emby Premium on Debian Linux - always happy with the combination. :-)
The site used is "tvdigital.de" which works fine for me. I've update to v5.2 lately and after some days I recognize that I lost some important information, which will be delivered by the <star-rating> tag. As Emby does not use several tags like <actor>, <star-rating> and so on I've used "rex" to merge that Info into the <description> tag. Worked fine.

This is the rex.config.xml line which did the trick:
<desc>{'description(, )'. }{\n\t¤ Country: 'country(, )'. }{\n\t¤ Produced in: 'productiondate(, )'. }{\n\t¤ Category: 'category(, )'. }{\n\tProducer: 'producer(, )'. }{\n\t¤ Actors: 'actor/a+(, )'. }{\n\t¤ Director: 'director(, )'. }{\n\t¤ Presenter: 'presenter(, )'. }{\n\t¤ Writer: 'writer(, )'. }{\n\t¤ Composer: 'composer(, )'. }{\n\t¤ Rating: 'starrating/a+(, )'. }</desc>

tvdigital.de uses <star-rating> with several "system" values:
<star-rating system="Humor">
<value>0/3</value>
</star-rating>
<star-rating system="Tipp">
<value>0/1</value>
</star-rating>
<star-rating system="Sex">
<value>0/3</value>
</star-rating>
<star-rating system="Spannung">
<value>0/3</value>
</star-rating>
<star-rating system="Action">
<value>0/3</value>
</star-rating>
<star-rating system="Romantik">
<value>0/3</value>
</star-rating>

With v5.1.4-beta the results were as aspected in the new <description> tag:

<programme start="20240618041500 +0200" stop="20240618051500 +0200" channel="3sat">
<title lang="de">Heimatsound Concerts</title>
<sub-title lang="de">Dreiviertelblut</sub-title>
<desc>Musik aus der Region - Diese Reihe präsentiert ..
¤ Country: A/D.
¤ Produced in: 2019.
¤ Category: Musik, Konzertreihe.
¤ Starrating: 0/3(system Humor), 0/3(system Romantik), 0/3(system Action), 0/3(system Spannung), 0/3(system Sex), 0/1(system Tipp). </desc>
<date>2019</date>
<category lang="de">Musik</category>
<category lang="de">Konzertreihe</category>
<icon src="https://epg-image.tvdigital.de/778x436/14802644.jpg" />
<country lang="de">A/D</country>
<star-rating system="Humor">
<value>0/3</value>
</star-rating>
<star-rating system="Tipp">
<value>0/1</value>
</star-rating>
<star-rating system="Sex">
<value>0/3</value>
</star-rating>
<star-rating system="Spannung">
<value>0/3</value>
</star-rating>
<star-rating system="Action">
<value>0/3</value>
</star-rating>
<star-rating system="Romantik">
<value>0/3</value>
</star-rating>
</programme>

With v5.2 the results were useless in the new <description> tag:

<programme start="20240618005500 +0200" stop="20240618021500 +0200" channel="3sat">
<title lang="de">Heimatsound Concerts</title>
<desc lang="de">Musik aus der Region ... ,
¤ Country: A/D. ,
¤ Produced in: 2023. ,
¤ Category: Musik, Konzertreihe.
¤ Starrating: 0/10(system Humor). </desc>
<date>2023</date>
<category lang="de">Musik</category>
<category lang="de">Konzertreihe</category>
<icon src="https://epg-image.tvdigital.de/778x436/17738122.jpg" />
<country lang="de">A/D</country>
<star-rating system="Humor">
<value>0/10</value>
</star-rating>
</programme>

For details please see attached files. Files:
1) rex.config.xml => rex config
2) WGepguide.xml => shortened file after grabbing
3) WGRepguide-5.1.4_beta.xml => file after rex with v5.1.4-beta (correct results)
4) WGRepguide-5.2.xml => file after rex with v5.2 (useless 'starrationg' results!)

I've tested a lot, but nothing brought the old behavior back. Any ideas how to get the results like in versions before v5.2?

Thanks in advance for any help.