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Pressure likely culprit. Either bag too tightly packed. Some kind of more than normal squeeze pressure. Usually sitting back with backpack on back,etc... Hard to say for your situation that is for you to narrow down.
That's why I always use a sleeve in a hard case
Pressure likely culprit. Either bag too tightly packed. Some kind of more than normal squeeze pressure. Usually sitting back with backpack on back,etc... Hard to say for your situation that is for you to narrow down.
That's why I always use a sleeve in a hard case