Same here. Fine yesterday. I remember it was fine on Saturday too. Today 1hr at FL390 and all good before it went to crazy OAT above Germany. Again on static weather above FL240 for now. Shame.
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For me it works fine today.
I think it’s an issue with the weather severs time to time when they stream wrong values.
Update: nope. Now I get +222°C over the Atlantic. It worked fine before.
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Been fine for me last couple of days and just flying over Russia at FL390 from London Heathrow and all of a sudden it’s gone mad. Descended to FL230 and all stable - crazy!
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Still the same problem on the way b787 fl400 EPKT-LPAZ
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Yep it just happened to me again at FL240
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Same here in UK. Currently flying from EGPH to EGKK and can’t climb above FL240.
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Not working for me either. Worked fine for a while from Riga to San Diego in a 787 but somewhere over Greenland my plane descended to 24,000ft and wobbled around there. Now cruising at 22,000 without issue.
I used to play Infinite Flight on iPad and there was a cool app for tracking community users in live flight. Anyone know if there’s anything similar for MSFS?
Same here. Flight from LOWW to LFMN over the Alps -245 Degrees.
Volanta or SimToolkitPro. It will only track those who have them installed.
Volanta can’t see STKP traffic nor STKP can see Volanta traffic.
Both are free and have compatibility with other sims.
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Thank you I’ll check those out. 
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Weirdly I just did 3-4 hrs of flying, cruising at FL390 without any temp. issues…guess I can thank the stars for that! Any very recent occurrences of this bug for anyone?
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I’ve done the same today. No problems.
All good here as well. Finished a flight from KSLC to KSAN, no issues!
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I was dismayed seeing reports of this bug again today, but no issues for me on two flights tonight EGPF → EBBR → EGPF. Twice up to FL360/370 and back down. No temp anomalies observed. Western Europe server.
Haha after my long cruise at 22,000 feet from Riga to San Diego I got a CTD about 100 miles east of LAX. I’ve had the sim since launch and have never had any problems until the latest update.
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This morning flying for 2+ hours over Europe at 41,000 feet and no issues. Outside temp -23c. So hopefully fixed.
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I have been using REX as an alternative. It also has problems when injecting weather, though the speed tape and altitude only jump about for 10 secs or so, then stabalizes. this happens every time weather injects at higher altitudes;
Yes - much better this am for my flight as well
No problems either. I`ve done a long haule flight from Düsseldorf to Kilimandscharo Intl. No temperature spikes. 
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