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Weird evaluation for first few moves

Just in the last day or two, the evaluation for the first few moves of the game look strange. Instead of there being a tiny edge for White until Black equalises, the evaluation chart bounces up and down between something like +0.3 and -0.3 depending on who is to move. The evaluations also appear before the full analysis of the game has completed (which starts at the end of the game).

I haven't noticed this before - seems like odd behaviour?

Eg before: lichess.org/mALATcHA/white

after: lichess.org/A2YexUWP/black
I too got very weird evaluation for the opening moves of a game finished today (very standard moves):

I noticed also, that evaluation for first 5-6 moves it's automatic like it come of opening book.
SF analysis for my games has been acting very erratic of late. For some reason along with the usual analysis which starts at the end of games, at the same time the graph shows the 1st half dozen moves with the bar doing funny things. It even skipped over the seventh move, with no evaluation... just blank.
The graph line at move 7 is broken, left blank for that move with no evaluation made in list of moves.

Copied from another similar thread, to emphasize SF computer analysis after games is acting up.

Just went back to the game for a review .. and all is good with the analysis like it fixed itself!

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