External Refresh issue

[Matthias515566]

When multiple instances open and a external HDD is disconnected, MC think sometimes the HDD isnt disconnected. When a Android Smartphone disconnected, MC think it is still connected. When a Android Smartphone reconnected, MC have yet the old links and can't connect to a reconnected Smartphone. But wenn a new file created or a file overwritten in most cases MC recognize it, but sometimes i need to press the refresh button. But the refresh button do not help for Smartphones which are via MTP connected.

[Mathias (Author)]

When multiple instances open and a external HDD is disconnected, MC think sometimes the HDD isnt disconnected.

Hmm If it is a normal drive then Windows should notify MC about that,
I can't recreate that. If I remove external device that is F: then F: goes away in MC. 

When a Android Smartphone disconnected, MC think it is still connected.

Yes, That is because Windows does not always notify MC when phone using WPD is disconnected.  Some phones works some dont

[Matthias515566]

If I remove external device that is F: then F: goes away in MC. 

Yes, it works also for me, but sometimes not.

[Ulfhednar]

I posted this in another thread but may be relevant here...

I have been finding erratic & slow USB recognition/processing for a while with W10, after a lot of messing about it looks like it is related to w10 recent builds & USB drivers.  I have had things working perfectly, w10 update screws it, new drivers come out - fixes it; then w10 breaks it again....

Using different external hubs dramatically changes performance for me when connecting v 1.1 or v2.x to v3 ports.
v3 is supposed to be compatible with v2 but it hasn't been 100% for me this year, last year it was ok & everything was recognised correctly. 
Sometimes now I need to daisy-chain devices with a hub to get recognition/performance.