Why has the Russian convoy headed to Kyiv stalled?

The video discusses a stalled Russian convoy near a city, attributed to mechanical issues, congestion, and low morale. Command and control problems, as well as Ukrainian resistance, are also factors. The convoy might be paused for strategic regrouping. Russia may be shifting tactics from a quick government overthrow to heavy firepower operations. The convoy aims to encircle Kiev, where residents seek shelter in the metro.

What factors are contributing to the slow progress of the convoy mentioned in the text?

What issues did a former commander of the UK Joint Forces Command identify as likely causing bigger problems?

How might Ukrainian resistance be affecting the convoy's movement?

What alternative explanation did Pentagon spokesman John Kirby provide regarding the convoy's delay?

What strategy are Russian forces reportedly trying to transition to, according to the text?