Bulk species name edit bug

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A taxon name has been recently updated (split of Ophrys fusca forestieri from Ophrys fusca fusca). I tried therefore to modify my records for that new name (Bul Edition). It seems first to work but:
Bug 1: after modifying around 60 records, the process stops with the error message: 504 Gateway Time out
Bug2: at the same time a message received indicates that one of the field has been modified: This is for only one of the filled fields (Stade de développement végétal - Plant development stage :) and the modification is the remove of the content.

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