Russian troops mutiny?

 ISW:

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Russian forces are increasingly refusing to reenter combat, and the Kremlin remains unlikely to quickly redeploy effective forces from northeastern Ukraine to operations in Donbas. The Ukrainian General Staff reported that more than 80% of personnel in some unspecified Russian units previously involved in combat operations are refusing to return to the front.[1] Russian commanders are reportedly refusing to release soldiers whose service contracts have expired, forcing them to stay with their units. The Ukrainian GUR (Military Intelligence) claimed to have intercepted a letter from Russian Chief of Missile Troops and Artillery Mikhail Matveevsky to several Russian training centers calling for further censorship of troops undergoing training, and encouraged propaganda highlighting the monetary benefits of serving in the war.[2] Elements of Russia’s 6th Combined Arms Army (CAA), 20th CAA, 1st Guards Tank Army, and coastal troops of the Northern and Baltic Fleets continue efforts to regroup for likely redeployment to eastern Ukraine.[3] The General Staff additionally reported that Russian Western Military District Commander Colonel General Alexander Zhuravlev (the first explicit mention of Zhuravlev since the war began) is planning to remove Major General Ivan Belyavsky from the position of the head of the WMD personnel department due to low recruitment numbers.[4]
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The Russians are also scrambling to explain pictures that are seen as evidence of war crimes: 

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The Kremlin contradictorily claimed both that the United States faked videos taken in Bucha and that Ukrainian forces carried out actual killings. Kremlin spokesperson Dmitry Peskov and Russian Foreign Ministry Spokesperson Maria Zakharov denied any allegations of Russian involvement in civilian deaths in Bucha and claimed the United States is “organizing and orchestrating” an information war against Russia in a series of statements on April 4.[27] Russia’s Permanent Representative to the Organization for Security and Co-operation in Europe (OSCE) Alexander Lukashevich claimed that Ukrainian forces faked reports of mass graves in and around Kyiv to derail peace talks.[28]  Peskov claimed that videos of the massacre in Bucha were staged forgeries distributed by the “Kyiv regime.”[29] The Russian Investigative Committee opened an investigation into the spread of “disinformation” regarding the Bucha massacre on April 4.[30] Zakharova separately claimed on April 4 that the Ukrainian military had committed the crimes in Bucha to derail peace talks.[31] Russian Presidential Advisor Dmitry Medvedev attributed the atrocities in Bucha to Nazis and claimed that Ukrainians had been praying for the Third Reich.[32]  Russian representative to the United Nations Vasily Nebenzia claimed “only amateurs” would fall for the videos and falsely claimed that Russian forces do not target civilians.[33]  Russia’s Foreign Ministry claimed that the West had supported Ukraine’s “provocation” in Bucha and was as much a participant as Ukraine.[34]

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The Russian explanation sounds like an incoherent mess.  It is also not credible.  There is similar evidence of war crimes in other areas of Ukraine that were under Russian occupation.  It should be noted that troops are unlikely to mutiny when a war is going well.  This has been a hot mess from the beginning.  It was poorly planned and poorly executed.  The Russian troops were not prepared for the resistance they faced.