Rare exception in aircraft livery fetch can cause save file to break

bugs on load. all staffs, passengers, and aircraft gone. have to re-hire all staffs and buy vehicles, etc. again

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COLLECTED HARDWARE DATA
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Application version: Beta 4.2-0

Device
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Model: XPS 17 9700 (Dell Inc.)

Operating system: Windows 10 (10.0.0) 64bit

RAM size: 16 GB

Battery status: Full
Battery level: 1

Processor device
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Type: Intel(R) Core(TM) i7-10750H CPU @ 2.60GHz
Core count: 12
Frequency: 2 GHz

Grahpics device
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Vendor: NVIDIA
Type: NVIDIA GeForce GTX 1650 Ti
Memory size: 3 GB

Screen summary
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Full screen: True
Resolution: 1920 x 1080 @ 59Hz