Auto-translated
"Well-known" bug, you say? Well-known to whom? Has it ever been documented anywhere? This is the first time I've heard of it.
In particular, the bug with 1300 moves occurred in the final game of the St. Petersburg Championship 2008, which took place in "Alaska." So, there was no shortage of spectators. And it manifested itself several times in other situations, and I encountered it several times in personal games.
There aren't many clear examples of starting with a larger number of moves, as an excess doesn't cause as much disruption as a shortage (for example, Alex was upset for a long time when a hero with 1300 moves couldn't reach from one castle to another, even though it was known that 1500 was sufficient). However, in careful gameplay, where chains are placed not "by eye" but cell by cell, bugs with an excess of moves also become noticeable.