Early beech leaf drop

[hesslemount]

Based in South Yorkshire a beech tree (40cm dbh) has shown earlier leaf drop in mid-July. Whilst I understand that this was a very dry spell and the soil here is clay based a beech (similar sized) 10 metres away hasn’t shed its leaves. Also there’s some epicormic growth appeared from the trunk at 2M high. The branches are still supple and not brittle right throughout the canopy. Obviously this tree is closer to the drive so suffers more compaction to roots (see photos). The leaf pictures are the lowest epicormic growth.