This *.aspx page is driving me crazy

I'm trying to load the information for each text using a dropdown list ("DropDownList1").
I've tried using the following sitemap, but after loading a couple of items, it goes back and stops.
Could someone please help me? After many attempts, I still can't figure out what’s going wrong.
Than you!

Url: Bibliografia Elettronica dei Trovatori v.1.5

Sitemap:
{"_id":"BEdT_Testi","startUrl":["http://www.bedt.it/BEdT_02_15/id_testo_pc.aspx"],"selectors":[{"clickActionType":"real","clickElementSelector":"select option:not(:contains("-- Indice Pillet - Carstens --"))","clickElementUniquenessType":"uniqueCSSSelector","clickType":"clickOnce","delay":1000,"discardInitialElements":"discard-when-click-element-exists","id":"Testo PC","multiple":true,"parentSelectors":["_root"],"selector":"html","type":"SelectorElementClick"},{"id":"Inc","multiple":false,"parentSelectors":["Testo PC"],"regex":"","selector":"td div div i:nth-of-type(1) b","type":"SelectorText"},{"id":"Tro","multiple":false,"parentSelectors":["Testo PC"],"regex":"","selector":"[name='id_testo'] b:nth-of-type(2)","type":"SelectorText"}]}

Hi,

It will not be possible to traverse the dropdown using the Element click selector since the page is reloaded after each selection, thus breaking the sequence.

However, there is a workaround. Please try the sitemap below with a pagination selector:

{"_id":"BEdT_Testi","startUrl":["http://www.bedt.it/BEdT_02_15/id_testo_pc.aspx"],"selectors":[{"id":"Testo PC","paginationType":"clickMore","parentSelectors":["_root","Testo PC"],"selector":"option[selected=\"selected\"] +","type":"SelectorPagination"},{"id":"Inc","multiple":false,"parentSelectors":["Testo PC"],"regex":"","selector":"td div div i:nth-of-type(1) b","type":"SelectorText"},{"id":"Tro","multiple":false,"parentSelectors":["Testo PC"],"regex":"","selector":"[name='id_testo'] b:nth-of-type(2)","type":"SelectorText"}]}

Important step: Start the scraping with an increased delay so you have time to manually select the first option from the dropdown. Then the scraper should start to automatically move forward.

Great! Thank you so much for your generosity. You're amazing!