Thanks for sharing your solution.
That sounded too good and simple. So I tried that. But again: No hillshade 
visible, when osmand files are in individual folder /OsmAnd on sdcard.
Mok... are you successfully using hillshade with your solution?
If not can you try if works?

Thanks!

[email protected] schrieb am Donnerstag, 28. Januar 2021 um 22:56:25 UTC+1:

> I had a similar problem with an external SD card recently.  Subsequent to 
> the Android 11 upgrade on my S20, map rendering went from <0.5s to 5+ 
> seconds.
>
> Based on some research, I think the problem is changes to the "Storage 
> Access Framework" in Android 11.  For app-specific data stored on the SD 
> card in /Android/data/, an API request for access permission can take 100ms 
> -- and OsmAnd needs to do that hundreds of times.
>
> I was surprised at how simple the solution turned out to be.  I made a new 
> directory on my SD card, /OsmAnd, and told OsmAnd to use that as its 
> storage directory.  Maps stored outside the /Android directories now have 
> the same rendering performance I'm used to.
>
> On Wednesday, January 27, 2021 at 8:49:28 AM UTC-8 [email protected] 
> wrote:
>
>> Hello and thanks!
>> Just for fun I also downloaded slope but neither slope nor hillshade was 
>> visible even after multiple times checking the buttons and sliders.
>>
>> But then i discovered the cause of the problem:
>>
>> I had the data storage folder set to my external sd-card.
>> After setting that to the internal storage and letting osmand move all 
>> files it worked perfect!
>>
>> Without any other changes hillshade works well on internal storage and 
>> doesn't on external.
>> There seems to be a problem with android 11 and the external sd-card. 
>> Osmand had no problem with maps on the ext. sd-card, only with hillshade 
>> and slope.
>>
>> I tested this behaviour on two different Samsung S4 with lineageos 18.1 
>> and two different sd-cards.
>>
>> I hope this can be fixed in future updates.
>> Storage on ext. sd-card is a must for osmand users with large collection 
>> of maps.
>>
>>
>>
>> [email protected] schrieb am Mittwoch, 27. Januar 2021 um 15:31:16 UTC+1:
>>
>>> Hello! Thank you for the feedback.
>>> You can try to change the opacity of the "Hillside" layer in the 
>>> "Configure Map – Terrain" menu. Also, check that in "Terrain" you have 
>>> switched to "Hillshade" now the menu contains a switcher between 
>>> Slope/Hillshade. If it doesn't help, please contact us at 
>>> [email protected] and provide the region name for which you are 
>>> downloading the map.
>>> On Wednesday, January 27, 2021 at 12:43:16 PM UTC+2 [email protected] 
>>> wrote:
>>>
>>>> Hi, 
>>>> I have been using osmand+ for years.
>>>> Recently I had to reset my phone and install osmand+ and the 
>>>> contourlines and hillshade plugin (bought years ago).
>>>>
>>>> I downloaded contourlines and hillshade for germany but i cannot see 
>>>> the hillshade when viewing my map.
>>>> The contourlines are there. Hillshade is switched on in the map 
>>>> configuration but does not show on the screen. The map remains "flat".
>>>>
>>>> I am using osmand on a Samsung Galaxy S4 with lineageos 18.1 (android 
>>>> 11).
>>>>
>>>> Any ideas why hillshade doesn't work for me?
>>>>
>>>> Thanks!
>>>>
>>>

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